I had a day layover in its capital, Doha, on April 16th, before heading to Tbilisi, Georgia, then Azerbaijan and, finally, Armenia.
The architecture is quite stunning, showing what oil wealth can build. It was quite easy taking a cab to one end of the strip along the coast and walking to the other end. And as I walked at night, I did not fry in the desert heat.
Qatar is really a nice place to visit. Also, I don't really wish to live there. But, if you have a chance to do a layover there, I would advise you to do it.