It’s difficult to evaluate the general mood in a company.
From the few experiences I had (6), the restroom rule proved to be right every time.
The rule is quite simple.
There is a direct relationship between the level of ‘happiness’ and the restroom cleanliness.
The happier, the cleaner.
I was once working in a merger & acquisition firm in London and the restroom were worst than in a nursery. People were obviously either fascinated by wall pee patterns or just deliberately urinating in a way that let them express their anger in the most stupid way.
If your office toilets are dirty, don’t blame the cleaning lady, you’re the one doing it wrong.