NOT for drummers
The Pigtronix Infinity Looper is truth in advertising. The plethora of features and functionality (including the well handled midi sync capabilities) are all available right out of the box, however, a lack of subtle nuances in functionality leave this device unfit for drummers trying to lay down a fresh full-body drum beat to start. The functionality that this device lacks includes an inability to "Auto Record." Even with the Midi sync capabilities, the lack of this function makes it downright impossible to both initiate the loop recording and have both feet free and ready for drum bass/hi-hat pedals. The cheaper Boss models all have this feature, so I took it for granted that a more sophisticated pedal, such as the Infinity Looper, would also have this...
The midi sync capabilities of this device are, however, very impressive IF you have a free foot/hand/face to initiate the buttons. The device does a wonderful job at keeping time, and readjusting to new input midi tempo settings. My problem with this feature is, again, the unfortunate necessity of having to end each loop JUST before the midi tempo sync signal ends. For laying down drum beats, this causes all recorded loops to have a single measure of silence, initiated by pressing the pedal either at the end of the measure, or a few milliseconds after the start of the next (the later more often than not due to the fact that I am not a robot and my timing is a work-iin-progress).
I will be returning this product ASAP and I will be going for the slightly more expensive Boss RC-300, a brand that I know won't disappoint, at lease not on such a fundamental level.