Do not confuse the local "Sansui" with the international counterpart. Not the same IMHO (Unless something changed recently). Check for International specs/reviews on the specific model no. to be save.
The Local Sansui would in my view compare with the other local no name brands (or maybe not).
PS: I still have a real Sansui Quadrophonic 4 channel HiFi. Was amazing stuff at the time.
I have the 42" 1920X1080 Sansui, been hassle free for 2 yrs, only one green pixel, but hardley ever notice it! Really lovin it. Its probably on for up to 10hrs a day! Quite easily - My wife is a stay at home mom and we got a 3yr old.
I too have a 42" Sansui for around 2 years now, no problems at all. The picture quality is pretty sweet too. In my opinion it's on par with the other brands.