BUY IT. I definitely recommend this product. I never leave feedback on purchases but I feel that it is my duty as a guitar player because this thing rocks so hard. I spent a lot of time researching loopers with drum machines, with a strong focus on the quality of the drum machine. Some reasons to buy this pedal are because it...- has almost twice as many drum beats as all other combo looper/drum machine pedals (220 total), with 20 grooves per genre - Heavy Metal and Punk genres are my favorites :)- doesn't restrict the length of your recording per track (300 minutes total).- has this cool "progress bar/ring" feature that works its way around the display as you progress through the loop so you know when it will restart.- The record/replay/overdub process is ergonomic.- The "Standby record" works great (you press record and it waits for you to start playing to actually record)- It's quantize function works great, meaning that it will trim your loop so they match the exact amount of beats to allow the loop to mesh with itself or the following file.- While replaying a file, you can use the foot switches to select the next recording you want to play, and it will automatically play the file once the loop you are currently using ends. I love this feature! I don't know if all loopers work like this or not, but this is great because it allows you to save different files for every segment of a song and then play the song from beginning to end without any disruption between segments.- it comes with a power supply.Some of the drawbacks are:- There are not many 3/4 or 6/8 grooves. Like literally 1 of each per genre. Basically everything is 4/4.- The "Auto-Drum beat" is kinda lame. The beats it picks are hit-or-miss, although a firmware update may improve this feature.- The housing is plastic, although it does still feel pretty tough.- If you are recording with a drum beat and screw up the take, you have the reset the BPM of the drum beat before you can record another take. This is a pain because you have to bend over and push a couple buttons with you fingers. However, if you are ok with just winging it and you are not trying to be super-precise with the BPM then you can use the foot-switches to setup a 'tap tempo' to reset the tempo to avoid this problem.There you have. I recommend it.