I have a number of their early and late armor kits. Early ones were cheesy knockoffs of other manufacturers' items, and also made of an odd plastic that did not take well to Western cements.
However, their latest kits -- released in the last 24 months -- are a quantum difference. They have produced excellent kits such as a 1/48 scale MiG-15bis, the 1/35 SA-2 cited earlier, and amazing Chinese subjects such as their Type 82 armored vehicle transporter. They have also given others such as DML and Tamiya a run for their money with items like their 1130+ part German K5e (Leopold) railway gun.
If it comes in one of the blue and white striped boxes, you can't go too far wrong. The white Tamiya-style boxes, however, are the original kits and should be circumspect.
Cookie Sewell AMPS