I'm rapidly becoming a big fan of XVive. This micro amp does not have a wow-factor, but for this price...it meets expectations.
It is a cheap and easy way to practice guitar while everybody's sleeping (accidently my favorite hour). Plug it in, plug in a comfortable headset (don't bother with quality) and rock all night long.
If you want quality sound and an effect loop, use your amp or shell out the big bucks for a good preamp. Even then, these won't fit in your pocket and the GA-3 goes in your skinny jeans with room to spare.