It also depends on how you pitch it. I prefer to pitch the Cimarron off the ground a bit to get air flow. This will give you a lot more room but doesn't work as well in colder weather when there are cold drafts coming in. I actually had some extra guy points stitched into my Cimarron to pull out the middle of the corners to "steepen" the walls a bit. Otherwise, they can sag in the rain, or in an infamous case, in the snow where it collected in the night and I was awoken on the North Slope of Alaska when my pole snapped.
Here's a short, crappy video where you can see how the walls are pulled out with the extra guy points the next morning. Notice how I have trekking poles and a limb (which was a miracle to find at 3am in a place that has no trees) after I didn't properly set it up as I knew I should the night before.