I think you can get the same kind of effects with the digitech whammy pedal.
My Gear:
American Deluxe HSS Strat
Crate GT212
Vintage '66 Fender Champ Amp
Dunlop Crybaby 535Q
Jekyll & Hyde Ultimate Overdrive
Vintage '74 MXR Script Phase 90
Vintage '77 MXR Flanger
Orange Squeezer (clone)
^The BOSS is better, from what I've heard. It can do key-specific harmonies?I don't think the WH can do that.

Hey guys! I just started playing electric guitar should I get a Gabson Lay Pall or a Femdor Startokaster. I like the picks on the gabsons but i like how sweet femdors look. Beforre i get a gabson what company makes them?
Yeah the Boss does Key specific but you have to buy an add-on expression pedal if you want to have better controll of the pitch shift function.

Both it and the Wh-4 can have an annoying digital tone in some settings. You wont get away from that unless you shell out $400 for an old WH-1
Mesa/Boogie Dual Rectifier Roadster | Fender Deluxe Reverb
Jaguar | Stratocaster | Telecaster | Jazzmaster