The worst hotel room (out of many) I have ever stayed in, apart from the motel room that had dog fleas.
Supposed to be a twin bedded room but one of the beds was only 80cm wide (which is not a twin size bed). The mattress on the 90cm bed was awful.
Sheets were clean; the rest of the room and the en-suite were grimy and draped in cobwebs. The shower-head had something black on it which appeared to be mould. I cleaned it myself.
The room was cold. The radiator never came on, even though I requested it.
The room was insecure. It opened directly onto the car park and the outside security lights did not work. In the dark I used my phone torch to check the door number and insert the key. The outside door handle had come off. The only lock was a Yale type lock, which seemed insecure. The ensuite window had been left unlatched so anyone could open it and climb in from the outside.
Good points: Having survived the night, I was in a convenient location, and the breakfast was decent.