I heart my Regent. The only reason not to get a Regent is if you forsee ever needing 3 people in your backseat. I have a CRV so my backseat is not small, but with a Regent and a Marathon back there, there is no room for a 3rd seat. Or an adult.
I am a small person so I find the Regent a bit difficult to move around, it is not super heavy like some, but big. So also, it's not a seat that you want if you are moving it from car to car on a regular basis.
Also I had to have a tech show me how to do the install; I am not great with carseat installs and the whole long belt path/short belt path thing confused me. After someone showed me it was easy peasy.
SO...if you only need room for 2 in your backseat, and are not planning on moving it often, YES, you totally want a Regent. No other seat will last you nearly as long, it is so worth the money!!!