I used to own a PitchFactor, but did not have the Behringer control unit with it. However I remember reading elsewhere that the Behringer foot controller unit worked decently well with a few glitches here and there which could be fixed with a few mods (I forget which site I read this on, might have been the Eventide forums). However, I found my setup to work much better:
PitchFactor
Ernie Ball Volume Pedal Jr 25k ohm version as expression pedal
3-switch aux switch (I made mine myself, but you can get one from This1smyne or other sites, possibly Loop-Master, as well)
Why would you need all 10 buttons? I found that clicking through banks with the added functionality of the aux switch to be more than enough for what I needed. I set the banks to two sounds that I would generally need for a song, with the expression pedal controlling numerous parameters to change functionality of the preset (eg. changing the octaves from +1 to -1, changing the key, etc). It's certainly a cheaper route (especially if you get a used EBVPJr. or even a broken one and repair it yourself, which is extremely easy to do).
Hope that helps!
