Roland is really, for me, the only one featuring a pedal at an affordable price.
Very simple and very user friendly, once we realized it was sending at noon on channel 2 (? !!) For monaural mode, no need for manual.
Get used to touch the foot, especially for velocity, not easy but it is not from the keyboard itself, it just takes a little practice.
I use it to do the dirty feet while playing the guitar, it's not bad.
With virtual bass "Trilian" and a little practice you get a pretty realistic and very nice indeed, for the record I prefer a real low anyway, but to have a scene where the idea of its composition before recording it's perfect.
I use it for 6 months and I have no problem, I went with this model because here was obvious to me, a lot of pros use it on stage.
Note this is just the controller, it contains no internal sound.
In the end I would do this choice with his eyes closed.