For smaller gigs, or where a PA and monitor are provided, this saves hoiking amps and cabs about. Good alternative for mic'ing too.My main use is as an insert in the speaker line, cab emulation on and into my mixer for recording ideas. As I use transistor amps, I can just hook it to the speaker out and not use a speaker, then into the mixer, monitor using headphones and silentpractice with all the goodness an amp brings.
I've tried just using my preamp, but there is a slight, but annoying hum. Guitar direct?, more hum.It seems to like to see the high output of the amp.
For recording and gigging, well worth having. The cab emulation is quite good. Certainly more realistic than most software ems.I always use phantom power, but I have tried 9v. No noticable drop off or improvement either way, but phantom power doesn't die suddenly.
Worth having.