I think that it depends on the model whether a Corbin is comfortable or not. Comfort means different things to different people. Some want the seat wider, some harder, some softer, etc. It's hard to appeal to everybody. Sportbike seats typically have less cushion anyway, so that makes it harder to apply sufficient amounts of the various layers of differing foams that might make a seat more comfortable.
The Versys seat is thick enough that Corbin could use a good mix of various foams, but the seat requires about 2,000 miles to break in properly. I only have about 300 on the seat so far, so hopefully it will be broken in properly in the next couple of months. I've had several Corbins, and each of them had different feels. All of them were wider than stock and cradled my bum better. The DR650 cushion was a little hard though, even though the shape was great. The seat on the NC700X was very comfy. I'm expecting this one to be comfy as well, once it gets broken in. Right now, all I can say is that I appreciate the shape and the width. Compliance will come a little later.
For cruisers, Mustang makes a nice seat. Another brand that I like is Ultimate out of Canada.
