Just finished rear seats, is a Sports model so is easier, it took little over 2 hours, including taking the take off and install time not too bad.
I think cutting part is kind of scary because if cut wrong or slipped then there goes few hundred bucks!
man the basic padding is so thin, I'm so glad I'm doing this upgrade, I'll do the fronts next week, I ran out of hog rings
also the head rest for sport you need to keep the original on, it will not come off, just slide new ones over and clip, looks really nice, my neighbor was surprised how well it looked.
Update:
just finish the front seat, it took a long time, i took my time to remove all those plastic side covers without breaking the tabs, and the airbag had this clip you need to reuse for the new seat cover. and the other hard part is the last bottom wrap around clip. also work in a warm room helps soften the leather.
overall if you are handy is not that bad, it can be done in a day, like little over 6 hours, just don't rush it and make sure it is tight before crimping the hog rings.
BTW the sport basic seat covers are so thin, is like sitting on a T shirt, I'm glad I did this upgrade.