I went to SimCom (Orlando) for the 90. The sim has absolutely no motion; it sits flat on the floor at all times. The visuals aren't the greatest either, but it serves its purpose. The cockpit is identical to the real aircraft. As far as what to expect.. I have been in both the 90 sim and level D's at Flight Safety.

If you watch someone in a full motion sim (while the motion is turned off) you will still see that they are reacting as if it were in motion... e.g. leaning and such . But then again the E170 Sim has some nice visuals . The big thing you'll miss is probably the yawing during an engine failure.

Hope this was of some help. Best of luck!