I don't know about you, but I think there are some absolute tell-tale signs that you've booked the wrong hotel.
Travelling for business recently I encountered a number of capital-city hotels. All mid-range (no sense of entitlement here), well-located, looked good on the interwebs and, accordingly, seemed to offer incredible value. Some of the hotels delivered in spades. One or two did not, and I could tell within seconds at the check-in desk that I was about to be slapped with the disappointment stick.
One, in particular, offered a perfect storm of signs that I'd booked the wrong hotel.
1. On Arrival: The highlighting of some unnervingly strict Ts & Cs on the arrival paperwork, accompanied by the following warnings: Sir, please note that if you damage the room, or if it requires excessive cleaning you will be charged $XX. And, Sir, please note that check-out is strictly 10.00am. Your credit card will be charged $XX for every 20 minutes after 10.00.
Side note: I stayed in a hotel in Bali once that even had a charge for getting tattoo ink on the bed sheets.
That kind of thing. Alarm bells even going in.