Tata sky picture quality is really good. & 1 benefit above cable channels is, without changing the channel u will know what is there in other channels.
If your cable TV provider gives you all the channels you need, then its economical to take cable TV. I found the set top box a bit slow. when you change a channel, it takes 1-2 seconds to chnge. not like usual TV. Also when you on the TV always it shows help channel, & not the channel set while switching it off.
While purchasing tatasky, we have to buy the kit & then call tatasky people to installation. & the place where we get the kit, dont give proper information. so we feel unrelible. it will be better, that when they are coming for installation get the kit. or tatasky should take care that, kit dealers give proper information to customers & should behave properly.