I was never really into OD pedals, but decided about 6 months ago to start looking into them again.
I used to own the Zakk Wylde OD pedal. To me, that pedal just created more hiss and noise. I sold it shortly after buying it several years ago.
So this go around, I read a lot about OD pedals (especially on this board) and narrowed it down to the Maxon 808 and the Fulltone OCD.
It's funny you guys mentioned the GC 30-day cash back deal. I went there first rather than the privately owned joints I normally go to. I was planning on buying one or both, and taking the other one or both back if I didn't like them. Well true to form for Guitar Center, they didn't have either, nor did they know when/if they would receive any, nor did they know if another store had them, etc. One of many reasons why I hate Guitarget.
So I went to National Speaker and Sound in Denver (bought my Roadster head and two PRS guitars from them....great guys!) where I should have started my search to begin with. They had both the Maxon 808 and the OCD so I got to try both extensively.
Although I own two DR's, I test drove them through a Stiletto Ace head and 4x12 cab. I played both for at least 20 minutes apiece trying out different settings, etc. By the time I was done, I was no longer on the fence. The OCD was the hands down winner IMO. To me, the 808 sounded like everything else I had experienced with other OD pedals, and probably part of the reason I wasn't a big fan of them up until now. I know a lot of guitar players use the 808 with great results, just wasn't my cup of tea.
The OCD works very well for my applications. I play in a one-guitar, hard rock cover band. I use the OCD for solos to give my sound a bit more attack, punch and clarity, but it doesn't suck my tone at all. On some songs that we play with a lot of quick, alternate picking and no clean, mellow parts, I will leave the OCD on for the whole song.
Overall I've been very pleased with the OCD since I have bought it. It has given me that extra little something I didn't have before, and has proven to be very beneficial for me as the only guitar player in my band.