I'd read good things about these little guys and I've been on a mini amp kick lately so I figured I'd check it out. I was not expecting it to kick as much ass as it does. From what I gather there were 3 versions of the first gen THR10. This one includes the 3 different amp categories for a total of 15 amp options plus the effects, cabs etc... A tablet, laptop or phone is a must because without the THR remote app, you can't access most of the settings but it's intuitive and easy to use. Did I mention how incredible the sound is from two 6 inch speakers? I wish I had picked one up sooner. Great cleans, nice overdrive to moderate gain, really nice high gain lead tones. Plenty loud for small room jamming. Overall absolutely worth what they are asking.