I have never bought them before, but I have had them come on bikes I've bought. They don't seem any less well made that any other well known brand. The pins are countersunk into the plates, unlike the cheaper SRAM and KMC chains.do you have any experience of those particular Taya chains?
(am about to replace an SRAM 850 which seems to have lasted about 125 miles - hopefully it was a lemon)
If my old chain has gone passed the .75 mark on my chain tool I usually replace the cassette too. I also try not to use the big big / small small chainring / sprocket combinations when riding.