I get things like pin headers, probe adapters, jumper wires, tweezers, jacks, CNC bits, tactile switches, IDC sockets, IC sockets, buck/boost converters, and bluetooth modules off aliexpress with no issues other than the occasional slow shipping.
I also got a book of SMD resistors off there and it’s been fine, not sure if they’re really the name brand they claim to be but they’re on spec at least.
I got a bunch of 10k/100k pots off there…but they’re noticeably lower quality than Tayda and other sources. Much happier with the pots from @popflier which are about the same price, much higher quality and arrive in just a few days.
I got some arudino nano’s off there - but 1 out of 4 was DOA. They were cheap enough I don’t really mind.
Shipping lately has been pretty slow though. For awhile I was getting things in just 2 weeks or so. But I ordered an antenna tuner kit and it took almost 3 months to show up.
I’d be wary of things like FTDI chips which are frequently cloned. And “too good to be true” deals on IC’s which are probably iffy pulls from equipment.
I haven’t been burned by anything off ali yet…but I’m also careful about what I order from there.