I had Slink and Jake 2.0, also tried Gianni demo, currently using Legacy male, and I must say it's by far the most complete and satisfying experience of them all atleast for me. For instance Gianni clothes work remarkably well with a little alpha work also some Jake clothes work ironically that doesn't even work with Jake 2.0 anymore since the wrists were changed resulting in clipping with long sleeved garments. One area in which the Legacy body excel is the neck area. In the image below I use StrayDog legacy skin on body and Lelutka Andrea head, windlight is midday. Another great thing is that the hand animations actually work and that can't really be said for Jake 2.0 for instance. Now I know some people mention the small gaps and it happens due to loss in precision when storing coordinates as floating point numbers. The long explanation: https://docs.oracle.com/cd/E19957-01/806-3568/ncg_goldberg.html. This is being worked on but it's obviously no easy thing to just correct since it happens due to a way SL handles said floating point numbers, but hopefully it can atleast be mitigated to some extent. Mind you this problem also happen on all other mesh the higher in the sky you go it's just on the Legacy body a few faint lines can still be seen on ground level and that happens because the body has more cuts than other meshbodies. These cuts mean however that the body is more round and has a better shape than other competing brands so it's a tradeoff at this point that hopefully will be fixed in the future. Oh and regarding support there are more and more Legacy items being released every week, check this for instance https://www.flickr.com/groups/legacyreleases/pool/page1.