Mileage is going to vary with the Imax Experience. The warning to all moviegoers prone to motion sickness is to be taken seriously, as I found out much to my chagrin. The screen wraps around so completely that there is no way to just look for a corner of the screen the focus on until your motion sickness goes away. The pre-show greeter recommends you try closing your eyes, but even that isn't really fool-proof, as the light changes are so intense that you can still see them behind your eyelids. And the problem with sitting in the back for me is that I am also mildly afraid of heights. The incline in this theater is so steep that it gave me vertigo and I had to climb back down to a lower row of seats. Also worth noting: if you do step out, you will not be able to get out the front and can only get out the back, and you will not be able to get back in. I think that's to preserve the experience by limiting light exposure from outside, but it also means that you'd better not go crazy on the jumbo sized drink if you don't want to be holding it until the end.
I did find the service to be good and the theater to be clean, and this is one of the rare theaters in town that offers alcoholic beverages at the concession stand. Also, their game room has a pool table and foosball table for extra win. I think that if you have a strong stomach and no fear of heights, that you will really enjoy taking in a movie at this theater. As for me, I'm sticking to the multiplex.