Any advice on this routing? I prefer it because it is a daytime flight on a 767, but I have a three hour connection time in MIA to my domestic flight on AA(last one of the day) and am worried about delays enroute. Also, I am traveling in economy class so I'd appreciate any comments about this aircraft, as the flight (4590) does not come up on seat guru.

Also, what time would I need to check in for this flight? It departs at 8:30 am (Sunday morning) and I am traveling from the port area. Thanks!