I also love shopping on aliexpress. Items there are cheap but it doesn't mean they are bad quality. I also only buy those with high feedback ratings and with photo reviews. The only downside of shopping on ali is the shipping times. Sometimes, I forget that I ordered something from ali and get surprised that I have some package :)
Indeed, it doesn't mean it's bad quality! You need to wait for a long time, but as you say, I'm always happy when it's there :D