They're nice. You'll sit about an inch higher, so if you're tall take that into consideration as it applies to headroom and leg/steering wheel clearance. TMI upholstery and foam is absolutely top notch. Installation is just like doing stock seats. I think they're a great upgrade if you're set on using your stock seat frames.
If you're sick of getting out of the car and busting out the wrenches to adjust your seat back angle, I highly recommend the SCAT Procar Elite seats. They're awesome. I wrote a review of them (and the Rally seats) HERE.
Im really looking hard for a more modern seat, problem is I have red pony interior and want something that doesnt look totally out of place. So for the $1500 pony covered flofits( which get poor reviews) and the sport seats are my only options to get a match, Id settle for reasonably close, like a set of red leather buckets from an '05 mustang GT . Im kicking around settling on a set of red Corbeaus..but I REALLY want to sit in a couple of different seats first rather than buying based on a picture.