It's been a long time but I just wanted to come back and say thanks for the recommendation! I did end up getting a Nautilus based on your feedback. I thought I'd give a little review in case others are looking at this seat.
I ordered it from Wal-Mart.com and got it with free shipping to home, and it came very quickly. We got it the day before leaving on a trip and decided to take it with us - which is always a big test of a car seat! I must say the thing is HEAVY and awkward to carry! Compared to the Britax we have, it was a beast to carry around the airport so unfortunately that was a negative. But on the plus side I will say that I found it very easy to install with the Latch system in several different cars, and easier to get it truly TIGHT then any other car seat I've used including my Britax. My daughter definitely likes it - she likes the cup holder and the "secret place" to stash her snacks (storage cut outs in the sides.) One complaint is that I find the buckles a little awkward, the top buckle is hard to align properly and my child wants to do that one herself so we frequently battle over getting it right. The bottom buckle is easy to buckle, but unbuckling is tricky as it often sticks... maybe mine has a defect?
With the Nautilus and the Britax in the back of my Murano (one in each of the side seats) a third passenger cannot ride in the middle seat unless they are very thin. That is a bummer.
I feel like you get what you pay for when it comes to the seat cover, the Nautilus just has a little bit of a cheaper feel and doesn't seem to wipe up as easily as the Britax.
Overall, to be perfectly honest I wish I would have scrimped and saved and (more importantly) convinced my hubby to get a little higher end seat for the cover quality and hopefully something narrower so I third passenger could ride. But in terms of my child's safety, I feel that we are able to easily install this seat and use it with confidence and therefore she is certainly safe!
Thanks again for the input.