I actually hope he IS horrible.
Or at least gimped in some way, much like Link was in Melee. I need a character that takes skill to use, otherwise you'll get people saying "Oh, you just won because he's so easy to use or he's high teir blah blah". That's the kind of flack I hate and it really discourages me from using certain characters. For example, as soon as I pick up Samus, I obliterate my friends, and people just get mad. Samus is so versatile and has so many great moves, it just seems unfair to people. When I win as Link, my friends have more of a "Yeaaah good job" attitude.
So I REALLY hope Snake is very hard to pick up, so I can use him all the time without persecution lol.