Not the OP, but the radian is by far my favorite RFing seat.
Nice tall shell. 45 lb rfing limit with no standing height limit. No base for easy loading. Plenty of leg room and low sides on the seat so legs have plenty of room. Also the seat sits away from the back of the car's seat so giving even more room. Even with the wings, the kids view seems very unobstructed which helps keep them happier about rfing as they get older and nosier.
Nice long crotch strap and easy buckle. I love how padded it is in the bum area.
Aaannnd I love it FFing, too! I need something on a base for my 3-across but for actual use I really love the radian.