Just played a ton of matches as roy with DS (yayyuz roy dittos), and got a bunch of good replays.
Here's my thoughts on roy after today:
Nair is amazing.
Fair should be dropped down to 75 growth, and I'd also like to try 30 base on it. Angle is golden, though.
Dtilt tip needs to hit toward roy. DS was occasionally using this move the same way you would use marth's dtilt, and I think that it should be given more differentiation than that. Really... "stop playing marth." There are two things I'm thinking we could do with dtilt. Either make it about the same way fair is right now except with way less growth, or we could make it hit behind him for starting some techchasing, which would be equally as cool. The current dtilt tip does 7 damage, has 42 growth and 50 base, and has a 30 degree angle. I'm thinking for the first option to drop its growth to 21 or so, drop its base down to 35, and change the angle to 120. For the second option, you'd need 70 base and around a 140 or 150 degree angle, again dropping growth to 21.
Uair tip should be given the 0F attack ID, since as it is now, it affords next to no hitstun, allowing the foe to act before he even reaches the floor after one. Alternatively (or possibly additionally) the move should be drastically sped up, so that roy can perform multiple uairs in quick succession. The first one should be top priority, though, since speeding it up too much could end up being very un-roy-like.
Fsmash needs to be retweaked, but we already knew that.
Usmash needs major reworking. The side hitboxes do nothing, which really just kinda... sucks. I know I've noted before that I need to redo the frame speed mod on this one due to it looking awkward, but I figured I'd mention it again.
Bair tip should probably have some more growth. I'm thinking move it up to around 40 or 50.
DS will probably disagree with this, but I think Dsmash wants a couple frames less lag. Somewhere between 3 and 5 is what I was thinking. The move hits at such a nice combo trajectory, but you just barely can't combo off of it.
And then of course the specials barring blazer all need work, but that's a given. Speaking of which, blazer is awesome.
edit: Oh yeah, utilt needs more growth and dash attack needs to be useful.