What you need to do with cheap and/or stock wheelsets is to ride them a hundred miles or so, then make sure they are trued and tensioned. I even do that with shop-built wheels and with wheels I build myself. If a wheel is going to lose tension, it will happen in the first few hundred miles.

The other thing is that any singlespeed or track wheel is going to be stronger and more trouble free than any wheel build on a deraileur hub. It's one of the not-so-small perks of riding a fixed gear.