This thing is great ! For all that it does, in such a tiny package, and at its cost of < $100.00 bucks, it is phenomenal ! Is it "prefect" ? Almost. Sometimes you will hear a slight "white noise fizzy" on pick attack. But it is not all the time, and more noticeable on bass notes ... I understand Fender is working on aa firmware update to address the situation. But it should not be a show stopper. It is standalone. Does not require a stoopid phone to get to the good stuff . In that sense, it is waay cheaper in that you do not have to buy the durn phone, and pay for wireless services to access "apps" to make it work (unlike its cheaper and more expensive competition, NuX and Boss)... To think, that with this devise that is hardly bigger than a "big" pack of chewing gum, and earbuds or headphones, one can practice guitar without disturbing folks in the room with you, without disturbing PITA neighbors, and while having the freedom to get up and walk around (at a park, in your SUV, in your dreaded cubicle at work... This thing is waay cool. It does effects !!! Distortion Amp profiles ... Tremolo, Flanger , Reverb Its just insane. Buy now, before Fender realizes they priced it wrong (too low) .