You'll be needing to fill a fair few figures as well as boil a handful of them, they do not fit together properly. All the complex strain models are warped in some way. The only thing I can think is they pulled the figs from the molds while they were hot so they warped. Even some of my one piece models had to be heated as the feet were horribly crooked. Pity to ruin such nice figures with shoddy casting. A lot don't matter that they are warped, but feet are important.
Also, the Biohazard cards are a different size and colors are different. The tokens in my set of off-cut (not as bad as first edition SDE, but still losing a smidge of graphics on most of them)
I personally expected a bit more from them in terms of quality control for the components, however it was a steal for the price I paid.
Now, from reading the rules and looking over everything the game mechanics look top notch, even my wife was impressed with the rulebook layout, it is nice and easy to follow.