Personally it was my favourite Pixar film to date, edging out Monsters Inc and the Incredibles.
The visuals are fantastic, I'll need another half a dozen viewings to catch them all. While Ratatouille seemed to rest on it's laurels visually wise, Wall-E works wonders with new Particle generators, heat effects/ haze effects and a very pretty and (very obviously used to show off) flame effect. I believe Pixar also had to create all new rigging systems too.
Characters are charismatic, I doubt anyone will be forgetting Wall-E, Eve or Mo any time soon, the Va work was top notch, even the bleeps and bloops of the automatons is expressive and easily understandable. The lack of dialogue does not hurt the film at all, and while it may not sit well with some younger viewers, the comedy in the first half will keep them very entertained.
Loved the references to other very well known Sci Fi movies, although I was the only one in the group I saw it with who got them, as they had not seen the Sci Fi movie. Again, like all Pixar films, there are plenty of jokes for the young, for the old, and for everyone.
The animated short beforehand was very entertaining, and again visually very solid.
Only regret is that the film feels short, it runs for about 90 minutes but the film just zips along, it's just that good and engrossing.
Looking For: Wreckers Saga TPB Collection (with Requiem)