I ordered this amp to downsize from a 100 watt head to something more appropriate for my home. The reviews and videos I watched about this amp were spot-on and I couldn't be happier with how it performs. The main feature I needed was an effects loop so that I could plug other modellers into the effects return and send the audio out through my 1x12 cabinet. I've reached the point where I am stale on emulated guitar speakers and I want an actual speaker with a microphone in my signal chain. Since this amp handles 8 ohm and 16 ohm speakers, I was covered and many others should be as well. You can also use the headphones as a line out since it has an emulated cabinet in that signal, but I don't think it sounds the greatest, and I wouldn't use it in a mix.I was expecting to be disappointed with the lack of traditional tone stack controls, but what's cool is you can come up with some really decent high-gain tones with different combinations of the gain, tone and volume controls. I have found some really nice settings fairly quickly just trying out different knob positions.I've used it with a guitar directly plugged in, and I also have re-amped several sources through it to take advantage of this amp's great tones. I think using it to re-amp has been more fun since I can set up loop points in my mixes, then adjust the 3 knobs until the guitar tone sits nicely within the mix.Don't be fooled by the 20 watt power size....this little lunch box gets LOUD. I have mine running through my speaker at full volume in my isolation box and it does its job well. I don't play out or in a band, so I don't know how it would function in that area, but for home use it is more than ample.In case you're wondering, since it has a solid state power amp, you do not need to have it connected to a speaker at all times. You are free to use just headphones with it if you prefer.I haven't tried the bluetooth line in stuff yet as I have never done that with any amp, but I assume it would work just fine. It also comes with a foot switch to change amp channels if you want to do that.After working with this amp for a few days and enjoying how it sounds, I want to also get the Jackman (JCM 800) version as well to have most heavy sounds covered between this and the Jackman.For the price point, I am not certain you'll find a better deal that has so much to offer. I sweated this purchase for far too long and I'm glad I took advantage of an Amazon sale to get it for around $150 USD.