I've ordered from them before and never had an issue but I try to do some research on the product before I buy e.g. look at photos uploaded in the reviews section, look at what material the product is made out of etc.
However, I've recently stopped buying from there and I will never buy from them again. The fashion industry as a whole is extremely damaging to the environment but some businesses are significantly worse than others. All these fast-fashion businesses- Shein, Missguided, PLT, Boohoo and even Zara are making deliberate choices that they know is dangerous to the environment. I'm trying to make much better choices when it comes to fashion and stopping from buying these businesses is one of the first steps to that.