Don't write off HiSense. Great value for money. But I just upgraded from the HiSense to a Samsung SmartTV and would never go back (actually bought a second one).
I have a Sinotec 32" TV in my bedroom. Got it end 2010. It's lasted five years without any issues and still going strong. Although my paremts have a newer Samsung 32" TV in their room and the picture quality on the Samsung is a million times better. They paid R3200 for the Samsung last year. A new 32" Sinotec from Makro goes for between R2000 and R3000. I would rather pay the extra and get a Samsung.