Having stayed in a few self catering cottages I can say the quality of furnishings has been different every time, some brilliant, like the one we are in now and some, abysmal.
Has it occurred to you that it could have been a previous guest who wrote out the ovens instructions? Maybe they didn’t want to complain but wanted to warn any future guests.
I usually give a review, good or bad, on Tripadvisor, but only after we have received back any deposit paid re damages etc. I am always worried if they saw a bad review, we would be blamed for any damage we reported.
We once went to stay in a ‘luxury’ cottage in Scotland. It was an upside down house with two on suite bedrooms downstairs. One had a lovely big jacuzzi bath with a shower above in a cupboard. Yes, I did say cupboard and there was no floor area around the bath. You had to open the cupboard door, go up a small step and get in at the sloping end of the bath! Needless to say, we never used that one.
The second bedroom had another on suite, that was that small, if you sat on the loo you could burn your leg on the radiator if you weren’t careful, but you could have cleaned your teeth as the basin was so near. The shower cubicle was so small I could not wash my hair.
We ended up leaving on the Wednesday because I was desperate to wash my hair and be in a ‘normal’ kind of building. We spent the last two nights of our holiday at a lovely hotel!
Needless to say, the review wasn’t one of the ‘good’ ones I have written!