I've been ordering from Aliexpress for more than 500$ worth of stuff in 3 months and haven't had any issues with them.
Some stuff seems to take very... I mean very long delivery (to Europe) even some country like Italy is even longer! But I got most of my stuff in less than 20 days!
I encountered 1 problem of not receiving my item and place an dispute (too fast actually) and seller sent a message to me directly of replacement ASAP (which was actually asap) and got 2 stuff instead of 1.
I highly recommend you read reviews of seller and ratings before buying, most of them are solid. Don't expect too high quality of every stuff, the price is the teller here. I order mostly electronics, phone cases, airsoft stuff and some clothings. They are good for what they are sold for! I hope you with bad negatives comment don't expect too much of high quality stuff!
I only gives 3 stars for ship and quality, as it could have been better!