compressors are probably among the most misunderstood 'effect' pedals out there. I'm sure I had one in the beer case of pedals I sold back in 1988 (rent needed to be paid somehow ) I think I expected it to give me Gary Moore-like sustain and thus I was severely underwhelmed.

Now that I'm basically going through my AI nearly every time I play my guitar, I'm using a hardware compressor all the time. I'm intrigued by the concept of an opto-style compressor in a pedal form, since it's beginning to look like my new recording desk is going to have to wait for my next living situation.