One thing I've noticed in recent PI stays (not saying TL are innocent of it) is an issue with grubby windows (on the outside). Have PI had an argument with their window cleaning firm? This seems very easy to fix with a bloke with a big stick at most of the low rise hotels, though perhaps the fully sealed windows were a bad choice - even if you locked them and removed the handle, Euro style lean and turn windows would allow cleaning from the inside by general cleaning staff once a month or so (which is how often mine are done at home).
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Just had an experience which reminds me why I tend towards chains.
Booked a decent looking hotel, saying I'd arrive around 2200, pretty typical for a Friday evening travelling after work.
Got a message back: "Sorry, we can't do check-in any later than 7pm"
Er, wha? That's rather limiting your catchment! I get you might not be around the whole evening but there's a million and one solutions to that, e.g. putting the key in a key box or under the flowerpot!
Cancelled it and I'll book the Premier Inn, despite it being quite a bit more expensive!