Mackie Big Knob Studio

So, i've had it for a few days, i use it everyday with my monitors, dont have much to say about them yet, the A channel which i use to my monitors works well... i havent used many of the other features yet, im gonna update it when i have tried with headphones and a microphone...
it does tend to get a bit warm with a long time usage, its still not hot enough for it to burn your fingers but it does get hotter than 40C, overall im quite satisfied with it, it works well for what i need it for as of right now.

Edit: so i've noticed a bit of a problem, at low volume as in turning to big knob down to low volume can cause an unbalance in the audio so the right becomes louder than the left, so i recommend just using the windows audio to turn up and down the volume and leave the big knob as it is.

another edit: this isn't a problem for some, but a feature i'd love to see on the product would be a way to disable the built in mic, as talking in a voice chat the other parties can hear themselves.

I use it to control my active monitors in the studio. I have connected the main monitors to output A and subwoofers to output B. It's great because I can fine tune the amount of bass without having to reach for the subwoofer.
All the inputs and audio interface work like a charm, I use it as a mixer between 3 sources (DJ mixer and two iMacs), I sometimes connect my laptop or iPhone to the front 3/4 stereo in and everything works exactly as it should. Headphones monitoring also work great.
My only complaints are that it heats up a little too much for my comfort even when inactive (but no issues whatsoever) and when powering off in the back, the subwoofer makes a boom sound (even if the output for it is switched off).
I'm VERY happy to have this, it solved sooo many problems in just one device.

This is my first audio interface, bought for a home Studio. I chose it because of the combination with the active monitor controller. The case is made of metal, the legs do not slide on the surface of the table when you connect the headphones. Everything is very high quality and looks solid. Before buying I read that it is heated, so, it is heated but not much, it does not cause discomfort. Very good microphone amplifiers, 300om headphones play loud and there is a margin for volume. The controls are simple and intuitive. The large volume knob works smoothly. Excellent audio interface, paired with RODE NT1 a sound is very high quality. Cons not found, so I recommend to anyone who wants to create in your home Studio and has several pairs of Studio monitors, or has one pair but plans to buy more.