Lots of discussions on them-if you haven't already, try a search for them. Lots of opinions also, I think most good. I like mine and shoot it better than anything else I have shot. They do seem to hold their value, after the "drive it off the lot" drop. When they come up for sale used, they don't seem to last long, and IMHO they don't seem to come up for sale that often. Smooth, and my 55 @ 28 (I measured it with a scale and it is accurate) seems less. If you don't like it, you wouldn't have a problem selling it.
RonP