Well there's the unlocking feature on it, which you will have to get used to. But once you have it figured out, it works quite well.
Put a leatherman into someones hand, usually they don't get how to close it again. Same thing with the unlocking levers, I guess that's so because they require quite some force to be pulled.
Second thing is that they rounded the grips inside edges, which is really really nice, because now you can put a lot of force on the pliers without the grips "cutting" into your hands, as it was on the Super Tool.
Due to those two changes the whole grip is maybe 2-3 mm wider, which gives it a "heavier" look and feel, a fact I personally enjoy.
In the end they are pretty much the same, except for unlocking and rounded grips.
Oh, and one thing that they should have left as it is: They rounded the tip of the cerrated Knife, "oh yeah, thanks for the added security!" I'm not a child!
Not a real dealbreaker or anything that really matters, just doesnt look as cool as a sharp tip
greets r0b
P.S.: Was a little too harsh on the post above, thats what I edited.
P.P.S.: Check
http://leathermanlibrary.com/ for Pics of past and present models. You will see that you will not see many differences.
ST 200 vs
ST