If we had a "least favorite flights" thread, UA 888 would win my vote. I've done it many times in all three classes, and have learned to dread it. I actually like the crews in the human sense (they stay at the Ren, and are great story tellers), but I must confess that they aren't in the same league as their peers at Air China (I am serious). All that having been said, you'll be in good shape to unwind after you arrive in Mexico.