there were things I seriously didn't like about it, mostly dealing with how the characters were handled. Foxx and Ferrell looked like they hated each other and they never made eye contact. You never got the feeling that they trusted each other or that they would stick their necks out for each other, horrible dialog (or lack of) between the characters.
Also, I don't think they used Miami well at all. The shit they shot in Miami, for the most part, I think could have been done in any other major city. I hate saying it, but Bad Boys captured a Miami feel better than Miami Vice did. There locations they picked were pretty boring for the most part.