I'm very seriously considering a job offer I have for Qatar, but I want to get a better idea of what the work environment would be like. Is the language a problem, are their long hours involved, are people generally pretty diligent - or is it a lackadaisacal, lazy work culture?
English is the lingua franca of the business world, much to many Arabs dismay, and long hours may be required - but probs not likely, unless you're in a senior position or you're part of a start-up. Otherwise, what happens in your office depends upon the people involved.
The Qataris do business according to a different set of rules though, and you may want to check out the doing business in Qatar page to get a better idea of how to prepare.