Yes, I do spins and other stuff all the time- there is nothing like going
out and flying acro on a nice summer day. Never, ever gets boring. I also
think it really helps get the feel of a plane. With any practice, there
really should never be anything like an inadvertent spin- the plane should
be telling you when you aren't doing something right prior to the stall. And
once it does stall,keeping the wings level with your feet should help
prevent spin entry.

I am far from an expert acro pilot, but developing a feel for the plane and
what it's going to do are major advantages of acro training.