The patch on the actual fan base wobbles vertically. The engine cover, I had to attach with superglue, because this was only secured with a screw and there the very thin material erupted. Ergo could the vertical play of broken suspensions arising, even I do not know, because at the price of not even 29 including shipping I organize certainly no repatriation to my cost, and then possibly again to get a damaged product.
Now briefly to the product and its function per se: Actually all very fine, the levels are well chosen, the size is good and the air flow is good, with fairly low volume, if, yes if there was not even a light sanding and from would be heard on a slight clacking what you uniquely have to push on the inferior quality again.
All in all I would give 4 out of 5 because the material weaknesses should thus not occur, even if the production again 5cent would cost more, because I would be willing to spend for a then completely good product.
