That, combined with a lack of a real velocity curve in the plug-in, makes it too hard to control. VSL Steinway is the most deeply sampled of them all, but IMO has a lot of other issues, main one beeing a wierd dynamic response which makes it sound unnecessarily hard compared to te countless real Steinway D:s I’ve had the pleasure to play. Other good ones in your list are Walker, very deeply sampled, sounds great and a vibtage Steinway with lots of character, but for most of my uses it sounds a bit too vintage.
It’s definitely on the cleaner side, so some would probably say that it lacks character. It’s extremely good scripted, deeply sampled and the Abbey road room sounds like a million dollars. As a matter of fact I’ve just finished a piano album in a neo classical style, and have no issues* with using Garritan together with a 22 piece live orchestra, even when the piano is central in all the songs.
I mostly use Garritan CFX for solo work, and am very happy with it.