If you listen to this tune, there is quite a lot of reverb, especially listening to the end. It has a rather shrill, acute sound. I can live with it, e.g. you can blend the higher frequencies of the reverb away if you want to (but then it doesn't sound as wet of course).

https://soundcloud.com/rorosetree/beam-me-up-the-1966-star-trek-theme-on-roland-integra-7

But the Yamaha MoXF reverb is definitely better. This is an example with MoXF sounds and reverb:
https://soundcloud.com/rorosetree/yamaha-moxf-with-garritan-gpo

What I've started to do sometimes, is using the MoXF stereo input for the Integra, using the dry Integra signal and applying the MoXF reverb to the input signal. However, all Integra parts have the same amount of MoXF reverb then. I'm not that picky about reverb, so I can arrange well with it.