I've had the Gray Nicolls 360 ones, and to be honest, i thought they were horrendous! Mostly because the Inner Thigh Pad doesn't sit on the inside of the thigh! As per the pictures they send out, it sits on the front of your thigh. Due to the pad being sewn to the waist strap, it is also not possible to move it round.
Also the stitching on the velcro fastener on the waist fell apart. However my dad and brother both have the aero sets and swear by them, having used the same sets for the last 4 years each.