I've been lifting for years and have used countless gym bars. I've also had my own super cheap barbells. This bar looks great online, not as much in person. I'm glad I got this at a heavy discount because if I had paid full price, I would be sending it back right away.
The black sleeves, aren't black metal or even have a durable coating, they just have a thin black coating. The one sleeve looks like the coating didn't get completely applied (see picture). The coating scratches off the first time you put a plate on (see one of the pictures). I hope the exposed metal doesn't start to rust.
The red center is nice, but we'll see how it holds up. Bearings seem smooth. Knurling is so-so, not the best. Looks like they applied the red paint over the knurling and it smooths out the knurling somewhat.
If you're looking for a budget bar, I would suggest just getting one of the chrome ones.