A few queries (been there twice with work):
"Strict dress codes"? Not really, when I went there (twice), t-shirts and shorts were fine. Sure, walking round with your shirt off probably isn't the done thing, but nor is it in many countries
"Unfriendly society" - I found the locals (there's very few actual locals) to be pretty pleasant
"Weather" - your friend is talking about summer. This will be winter. I've been there twice in winter, perfectly pleasant, warm, yes, but mid-30s and dry heat. Evenings cooler. Quite pleasant.
Mind you, the whole regime is unpleasant and the way they treat their migrant workers is appalling. As a side note, the working standards for them makes you realise why the much-criticised "health and safety" culture of this country is a good thing.