Yes, absolutely!
It goes both ways. I've got some recordings where I was just "Noodling" and when I listen to them I'm stoked.
Most times though, I listen back and think, "I need to strike that chord more cleanly" or " I
(expletived) up my timing there." So it's a great feedback tool.
One bad habit I'll pass on for others to avoid is using your index fingernail to strum if you don't have a plectrum. Bad. Very difficult to break because you get used to the feedback from the strings, and you can tend to "choke" all your notes and strums when you play with a pick. I kick myself every time I listen to my own recordings.
