I'm a huge OSCD fanboy, and it didn't take very long. I was fortunate that a local shop carries them, so I did a stop over lunch. A short trial later, I forked over my cash. Went home and dialed in a sound that worked for me over my in-ears. I was playing at church a few days later, and our soundtech was floored, as was I. I love that I can use it as an occasional flavor, or as an always-on pedal. I now have two OCSDs, and with the Noble I will have 3 distinct sounds at my disposal.
Through an amp with my secular rock group, it has been handy to kick in when needed for a special sound (All Right Now, the Who's version of Summertime Blues with added B3K, etc).
It has become an essential tool.