Big K, I have the RP-250, and usually use it to record to computer.
While I have a few modified presets, the very first thing I would suggest you do
(once you're done playing w/ it for awhile), is get on the Digitech website and get the download that allows you to modify your presets on your computer. It's so much easier you won't believe it, plus you have control over more parameters than just by tweaking the knobs on the unit.
Doing it this way also allows you to save any presets you come up with, you can store 'em on the computer until you want them on your /250, then send them to the unit as you want.
The user's site has tons of other folks presets you can download and try out, keep, store, etc.
I think you'll like it alot. Be sure to do the download step by step, in the order it's given, or you'll have trouble and have to do-over... or so I've been told.
Guitars
Wilburn Versatare, '52 FrankenTele(Fender licensed parts), Fender USA Roadhouse Strat, Fender USA Standard B-bender Telecaster, Agile AL 3000 w/ WCR pickups, Ibanez MIJ V300 Acoustic, Squier Precision Bass,
Amps
Ceriatone Overtone Special, Musicman 212 Sixty-Five, Fender Blues Jr., Peavey Classic 30, Fender Super Reverb, Traynor YCV-40 WR Anniversary w/ matching 1x12 ext. cab, Epiphone SoCal 50w head w/ matching 4x12 cab (Lady Luck speakers), Avatar 2x12 semi-open back cab w/ Celestion speakers
Pedals
Digitech Bad Monkey, Digitech Jamman, DVM's ZYS, Goodrich volume pedal