Joyo Atomic

The amp is good enough for most of the cases for hobbyist guitarist and in some cases even professional. Very sturdy metal housing, good solid knobs and switches (even though they are quite small) while being really small.
Regarding functions it has one awesome feature: fx loop. It has built-in bluetooth so you can play along with any music you like (though it's not good that you don't have some line in for playing with groovebox eg.).
In terms of sound - it sounds good enough overall. I mean it could be better and cleaner but as well for the price it's really great. I actually would recommend this one to anyone from beginner to professional guitar players.