aliexpress is like a very shady back alley version of ebay, while many people report it to be trustworthy and legit, there is at least just the same amount of people, who advise to stay away from it due to personaly bad experience with packages not arriving or being cheap fakes
there is a reason, why aliexpress is cheaper - because it is not as safe as the "official" big versions, like ebay and amazon
so the very least, I would like to say is... be precautious, when you want to buy anything from there
I'm not up to date with the recent prices, but a short google search showed, that amazon is taking 100$ for it, aliexpress just the half? can that be legit? you should at least ask yourself, is it worth the risk or not
what happens then, is up to you