I got some of their 'elite' seats just under five years ago. Much better than the standard ones in terms of comfort for long term use, and they have cushions which go up at the sides so people don't slide about when you go round corners. They've been good for long runs - ~700 mile a day trips - on which the only thing that goes numb is the sole of my right foot from pressing the pedals, but that's not the fault of the seats. After 5 years the vinyl is starting to deteriorate where the seat back adjuster handle rubs against the side of the squabs.
Clearly some people achieve comfort at less cost, with Smart Car seats and Mazda seats being written about on here, but I wanted something that would bolt in without special fabrication and would let me access the under seat compartments easily.