Ew.
Valet parking involved flagging down an attendant that looked like they couldn't be asked to do his job. We were "upgraded" to a king size room upon check in this past weekend due to my husband's gold member status with the chain. We had sat in traffic for ages after a fairly long drive to get to the city, so I was tired enough to overlook how run down the room looked when we came in. I was NOT willing to overlook the past visitor's dirty q-tips and trash left in the bathroom, smudges on everything, and the mystery substance left all over the ice bucket. 
My husband sat down to call the front desk and discovered just how loudly a mattress can creak. They were unable to offer us a different room, and I was unable to imagine myself sleeping in the one we were in, so we booked ourselves into a different hotel and told them we were leaving. Apparently it's only a one way valet, so we had to go get our car ourselves, and were charged $33 for whole 15 minutes this fiasco took, which the hotel was unwilling to cover. 
I'm seriously not high maintenance when it comes to accommodations, but it's hard to have a good night's sleep in a room where they can't remember to wipe things off that I'll be touching or empty the trash. It doesn't exactly inspire a lot of confidence in how clean the rest of the place is, when this room was "specially held aside for priority guests by the manager."