This wasn't my first choice because a) it was out of my budget and b) it seemed expensive compared to others that offered more features. I tried several others in similar budget, and I discovered to my surprise that bluetooth amps give me a headache (! apparently you can't turn it off either), so I have to pass on all the latest shiny developments of amp technology. And I found this, and I didn't like so much the sound I heard on youtube videos. Instead, I have to say the sound is quite loud for such a small device and lovely too, all the settings are easy to understand and functional, at a first try no feedback, and it fits in my suitcase unlike the equally good boss cube. Also bluetooth is optional, the way it should be...