holy **** guys. the last 3 pages of this discussion have been rofl.
Anyways, back to ROB.
I just played a set against the best ROB in socal the last tournament I went to. I have to say, it's incredibly hard to pressure him. When you keep your eye on him, it's easy to get past lasers and gyros, since they're so telegraphed. However, his extremely fast roll and spotdodge make it very difficult to pin him anywhere. If you try to side-b him, he can roll into you and d-smash you before you get a chance to do anything. As far as close combat goes, ROB is actually pretty **** good. His d-tilt is fast, large, and trips like crazy, his grab is great and deals good damage.
The only thing we got going for us here is ROBs lack of ability to kill. If you can avoid getting hit by his rather predictable aerials (which shouldn't be too large of a problem, you have great aerial mobility) then you can survive to rather high percents. Of course, you also have to watch out for f-smashes, but those will be used to punish laggy mistakes, which ZSS doesn't have too many of (just watch out for flipjumping into him). The d-smash can be SDI'd out of, so he shouldn't be able to kill you with that.
Overall I think it's a 5:5