I used the cheap ones bought on Ebay for around $100 (ended being up being poly-urethane stuff)... They look fantastic, but they are certainly "grippy" and don't let you slide around like real leather....
Install wasn't too bad, plenty of videos on you tube... I think I fragged the seat heater element in the seat cushion as a lot of stuff was adhered to the foam after 18 years of use. I never use the heaters, so I'm not sure if they still work, or even if they worked prior to the seat re-covering..
Good luck!
I drive an 04 eddie bauer with the dual HVAC/seat temp feature, BTW