Mac touchscreens: Dell P2424HT or ViewSonic vTouch?

Looking for a Mac touchscreen, primarily to use for controlling (non-Logic) audio software. It appears that TouchBase is the successful driver company for this, and were hired by Dell to do drivers for the P2424HT. Additionally it looks like ViewSonic offers vTouch drivers across multiple products. It's unclear if those are also by TouchBase. Anyway, does anyone have experience with both and have an opinion on which works better?