hi there...well, it depends upon the area u live if qtel exchange is near u can get good picture quality also no drop outs...in few areas ppl are really suffering with mozaic..better u check with ur neighbors...also qtel have copper based network now and these kind of network hardly support IPTV...if ur neighbors are not happy then just go for ADSL and wait for FTTH....moreover u can call 111 and ask feasibility if u r 800 meters away from exchange it is ok and just go for it...else go for ADSL only.
good luck