What are you goals? Current mods and future plans?
Here is an overview on tuning and comparing the various options:
http://www.ft86club.com/forums/showthread.php?t=29340
OFT Specific Threads with tons of info from users (every ling in @
steve99 signature is useful):
http://www.ft86club.com/forums/showthread.php?t=71157
or from OpenFlash themselves:
http://www.ft86club.com/forums/showthread.php?t=46468
In the end hella people run it, and it works for some and not for others. Decide what is right for you based upon your goals and needs. If you plan to work with a tuner on a custom tune talk to them too