Hmmm, interestingly, I had them do my Triumph Scrambler seat a while back. They took it from a 50 mile seat, to a 100 mile seat. The workmanship was decent. Turn around time was awesome, about 2 hours (I took the seat to them, since they are about 60 miles from where I live. We went down to a restaurant in Gas City and ate while they did the work).
The stock seat felt like Triumph had installed a 2x6 in it at the Hinckley factory in the UK.
I had them do a seat on a v star 1300 tourer this past April. I drove it up about a 2 hour trip from me and a nice day to ride. They do a layering build on your same seat, of course their website explains it. Price was less than 200 dollars and I did some 200 mile days in comfort. They have been at this for quite a few years.