I currently own two Britax Roundabout car seats.  I purchased the first one after owning two previous car seats with my first daugther.  We did not get the Britax until my daughter was almost two years old.  She absolutely loved it.  It was comfortable, safe and most importantly very easy to install and clean.  It was more money than I wanted to spend but after purchasing two separate car seats at cheaper prices I finally spent the money and purchased the Britax.  I learned my lesson. 

I have now my second daugther.  She too loves the Britax car seat.  I don't think I would ever consider...