Elixir Nanoweb 12057 Light 7 String

Pros:
-Corrosion-resistant, indeed. My sweat can destroy some other strings, even those, which also advertised as "corrosion-resistant". But these will last forever without any sign of tarnishing. I used these sets for 3 month max, though.
-Great high-gain tone, and long-lasting as well.
-Consistent quality. Never had an issue with them.
-Perfect gauges for drop C on 25.5" scale (if you'll use .56 as a sixth string and don't use .46 at all). Might as well work for other drop tunings on other scale length guitars.

Cons:
-Price
-I personally don't like the clean tone of these, it's too bright and rattly. Not like fret buzz rattly, but on their own. I'm talking about wound strings, plain ones are fine.

Even though these aren't completely perfect for me, I highly recommend to try these at least once, you might find your favorite strings!

I've used Elixirs for over 10 years now.

The tone of the strings is very good, being lively and present, and most importantly, consistently so over the lifetime of the string.

The string life is simply exceptional, with a set usually lasting me several months with regular play.

The string feel is also an important factor, with the wound strings being smoother in feel, and producing less finger noise than non-coated strings.

The only real downside is that if you pick hard, the coating will peel and fray in the section of string in which you pick. This can lead to a case of "dandruff", where little flecks of coating will break off and gather on the guitar between the pickups. It's irritating, but I make sure to wipe the guitar down after playing. Since this area of string is not one I typically touch with my fingers, it's probably not the end of the world the coating strips here; the strings still maintain fresh tone even when this area becomes frayed and worn. I'm willing to put up with this inconvenience due everything else being overwhelmingly positive.

It has been years since I made the switch to coated strings and I have no regrets.
I was getting really annoyed with normal electric guitar strings, those nickel plated ones just don't last in my use. But these Elixir coated strings are a whole different thing, they last for ages and still sound as good as new - Deep lows and brilliant highs.

Now about this particular set "made for" 7 string guitars.
I use this set on a normal 25,5" scale six string guitar which I tune to C Standard.
So I'm only using the following gauges: 013-017-026-036-046-056. I have no use for the 010 gauge string. This setup works really well, although the low string could be a little more beefier - something like 058 or even 059.

I haven't tried this set with a seven string, but since I find the low string a tad too loose in C I'd bet that the low B is a little too much on the floppy side. Of course this is a matter of personal preference and this is only my opinion.
Nevertheless these strings are almost perfect and I recommend them for everyone to atleast try out once.

So I've just changed the strings on my 7-string the other day. For the first time since 2011. I'm not kidding.

Granted, I'm not a touring musician, I only play at home maybe 3-hours per week on average. And my hands do not produce oils and acidic sweat (I'm one of the few).

But still, that's a lot to ask for a songle set to endure considering that play metal with a 1mm thick Dunlop Stubby pick which is pretty aggressive. After four years, the strings did show traces of use but they held on and kept the guitar's tunning stable and consistent.

There was absolutely no corrosion and strings were smooth. Mind, I took no extra care - no polishing, not even wiping the guitar's neck.

The biggest surprise came when I put the new set on. The sound difference (old set vs new set) wasn't that big. Sure, the new ones were ringing nicely but the old ones still sounded just fine to record distorted sound.

Highly recommended for any user looking for reliable and lasting string set.

About 4 years ago I started using Elixir-strings exclusively on my basses. They sounded great and kept that tone for months. Of course I had to try these on my guitars as well...

This set of strings sounds very good. I would say "balanced with a slightly recessed brilliance/top-end" describes them very well. I mostly play progressive metal, so there is a healthy combination of heavy distortion, clean and some things in between and these strings work great for everything. The low B sounds tight, even in bigger, distorted chords but works just as well with a clean amp without dragging mud in your soundscape. I tried a lot of the most recommended strings out there, but found none which were significantly better than the Elixirs.
The only downside for me is the thickness of the low B-string. The tension is a bit too low for my taste.

The price is a lot higher compared to uncoated strings but they sound fresh for months! The set on my guitar is now 3 months old and cleans still are brilliant and beautiful. The strings feel like new as well. There are some dark spots on the coating where you normally pick but the sound has not changed yet. You should give them a try if you haven't.

Using on 7-string Ibanez rg7620 (stock dimarzi/ibz pick-ups). Home/rehearsals/performances. Several years ago there was no 7-string set available.

Pros:
1. Crystal clear sound. Once you try it - you'll never go back to other string brands.
2. Life-time. Few times more than other strings. Those strings keep this bright, new string sound for much longer then others.
3. Total "Price vs. quality" win.

Cons:
For such a fan of elixir strings - the only thing I could think of is lack of other 7-string sets with other string dimensions/sizes. Like .012-.068 7-string set for lower tunings.
i.e. this particular set string tension for extremely low tunings (like A or G) is not enough, IMHO.

TL;DR: Highly recommended for 7-strings with B/dropped-A tunings. Possible tension problems with lower tunings (like A or G).