I've had great experiences, my only bad one is at the one in Redmond, WA.

I was checking in at around 11:00pm, after a bad travel day which included sitting in a plane at IAD for 1.5 hours waiting for a cargo door fix, and hanging at DIA way too long after missing a connection at DIA.

I walked into the lobby and no one was at the desk, no one anywhere. I waited for about 5 minutes, then i started yelling "hello, anybody here" a few times, and then i called the hotel on my mobile phone, someone answered and i told them i was trying to check in but no one was at the desk, i was told someone would be right with me.

A young man comes out with a attitude, probably because i was taing him away from a nap. Never felt so unwelcome at a hotel in my life. I wasn't even offered my Platinum arrival gift and I didn't ask for it becuase i was afraid of doing something i'd regret if i had to deal with him anymore.