From what I hear they are ok but there are a lot of really good airlines about these days. Singapore, Emirates, Etihad, Korean all have a very good reputation. BA, Cathay, Malaysian, JAL are also good but, IMO, not quite as good. Turkish, most American airlines and Virgin are ok. I suppose if you get a good service by a particular crew on a particular flight you might start an affinity to that particular Airline. Horses for courses I guess. There are still a lot of Brit, Aussie, Kiwi and Yanks flogging around the Middle and Far East getting good, tax free salaries but they do add a layer of non-cultural reliability to the indigenous pilot population, which is a very good thing. For a long time Korean resisted the Western influence but after a string of pilot related crashes they realised it was a good thing too and now embrace it.