Your first impression is right. Respondents to this thread are friendly and not harmful. Some are serious maybe, but certainly helpful and hospitable.

A tip, keep being professional (I see from your profile that you're one already), have sufficient self-confidence, negotiate your salary and ask about your accommodation facilities before you’ve signed any contract and prior to arrival.

I hope your work and life experience in Qatar will be good and up to your expectations.

Let us know if you have any more questions.
Salam