He's better because its harder to punish his move's lag as effectively and spacing becomes less important, which hurts any character that has weaker moves who relies on good spacing. He is roughly middle of the pack but above, I play most characters online and I can tell you some of the best:
Falco, Fox, Ike, Metaknight, Snake, and King Dedede.
Then these are some of the very good:
Donkey Kong, Bowser, potentially Ganondorf
Some of the middle:
ZSS, Samus, Falcon, Ice Climbers in low lag (easier the get a grab so they can be buffed if they can fully CG), Sonic, Olimar, Peach
Some of the lower:
Link, Toon Link, Mario
Some of the terrible:
Jigglypuff, Marth, Ice Climbers with no CG's
This is not complete whatsoever.