I think he has done okay at Everton, but never great, they've never played nice football and the one time they got Champions League football they didn't even get into the competition.... I think he's always flattered to deceive
In all honesty whether he gets the United job or not, Moyes deserves a little more credit than that for what he has done at Everton.
He took over when they were struggling badly, relegation contenders & with the limited funds available to him has managed to drag Everton up the table & finish anywhere from 4th to 7th consistently. You think about it, the only teams that finish above Everton are the likes of Manchester United, Chelsea, Arsenal, Liverpool & more recently, Tottenham & City.. all of those clubs have been heavily invested in & spent double, triple or more than what Moyes has had to spend & yet he has managed to keep Everton consistently at the tails of the clubs that have spent big & failed to take themselves to the next level.
As for their style of play, I mean it's hard to kinda say they don't play nice football, it's all about the quality of players on the pitch. 1 player can change a teams style.
Moyes is much like Ferguson in the sense that he gives youth a chance, looks for value in his players & has uncovered several gems for limited money during his time at Everton.. the biggest question mark over Moyes's head is European experience & the fact that he'd actually be expected to do well in every competition. The demand for success is going to be far, far greater at Manchester United should he take over.
From a more neutral point of view (cause bviously I dislike United) the prospect of them no longer dominating (they might still after all) is exciting too
If we hire Moyes & Chelsea hire Mourinho, I think Chelsea could be in for a spell of dominance.. however despite what the papers say, I really don't think the Mourinho to Chelsea is as done & dusted as the papers suggest. Roman is still a key problem at Chelsea & it's the only problem Mourinho had there in the first place..