High tea, taken literally
The business class cabin on the A320 comprises of 12 full flat seats in a 2 - 2 setting slightly geared towards the windows for improved privacy. The seat is somewhat similar to the seat found on the Qatar Airways 777 fleet (obviously not the revamped QSuite), but it is narrower which you will notice especially if you try to sleep.
Noticeably, Qatar still manages to effectively offer their dine on demand service throughout the flight, which is especially an amazing feat of the crew, who has to work in the cramped galley on the plane's front. There is only one, also very cramped, toilet directly behind the cockpit. With very few exception, Qatar has excellent crews who are really focused on getting you the best service on such planes.
Obviously, the Qatar business product is infinitely better than what European airlines offer on their short haul fleet. Having said that, the airlines will very rarely employ their short haul fleet for such long flights (in this case, around 6 hours). The verdict: recommended, however if you have a chance of getting on a wide body instead, you should definitely do that. By now, Prague has two daily connections with Doha, one of which is served by a Boeing Dreamliner.