Around the Gulf, Doha has earned the unenviable reputation of being the dullest place on earth. You will be hard-pressed to find anyone who'll claim the place is exciting. That said, there's nothing wrong with Doha - you're unlikely to get shot or mugged or die from cholera.
The bay is pleasant and there are enough interesting sites around town to keep you occupied for a day or two. Doha is also the only place in Qatar with hotels (and an airport), so even if you're travelling around the country, you'll be stopping through here.