I got my seat kit last weekend and had it installed the next day. it took me about 3 hours from start to finish, including a run to get a pneumatic staple gun.
for the record, the silver hand stapler from arrow that costs about $17 will NOT fully seat 1/4" staples into the seat base. I borrowed it from work though, so no harm in trying it. I bought a pneumatic arrow staple gun from Lowes for $35 and it worked great and I have a new tool, rather than bringing it to an upholstery shop.
the seat is absolutely awesome! no more forward slide and my tail bone is not being crushed anymore!
the seat is curved in a bit now where the widest section is, vs the stock seat, which is curved out causing the tailbone pain. I cant flatfoot the bike anymore, but it's not the end of the world. (6'1", 32" inseam)
im right at 240lbs and the standard foam density is working good for me.(need to cut back on the pizza a bit)
I don't have any pictures of the new seat on the bike yet, but I will get some and post the before and after pictures up this weekend.
overall, WELL worth the $170! no need to shell out $500 for a Corbin.
BTW, if anyone else is going to buy the kit from seat concepts, use coupon code "ADVRIDER.COM" to save $15 on it.