Generally negative
The RC-2 is described as having a toy-like feel, and its stud-type buttons are called uncomfortable for barefoot players compared to other Boss loopers.
Frequently criticized
One user reports the RC-2 only allows roughly 8 bars or 10 seconds of recording before cutting off, preventing longer licks from being captured in one pass.
Generally negative
A user considering the RC-2 for electric violin asks whether it's possible to also layer an acoustic-electric guitar, unsure if the pedal supports more than one input source at a time.
Frequently criticized
A user reports that despite disabling bounce on all tracks, content from track 1 keeps appearing on track 2 when recording, making it hard to keep tracks independent.
Strongly criticized
One long-term owner says the RC-2 is a rare case of a Boss pedal that 'went completely wrong,' citing poor intuitiveness and worse sound quality compared to simpler competitors, and notes it has been discontinued.