Dim Pro is very good once you get under the hood.
I finally found out how to edit the release of notes and add vibrato using an LFO. I wish there was just a knob to turn to edit the release (like I've got on my Fantom x8). However this website has an easy couple steps to edit the releases of the notes.
http://www.cakewalk.com/products/DimensionPro/tutorial.asp Now I'm finding the pianos and some solo instruments much more beautiful with a bit of longer decay.