Mechanically everything fits quite well, the various films can be well install. The zipper makes a solid impression. I have my lubricated with silicone oil, since it runs silky smooth.
The silver foil reflector on my had off for a time and then wrap white places where the silver coating had come off. I do not know if that was so even before unpacking, or whether the coating was rubbed. To this end, there is a point deduction. The reflector was replaced and entirely unproblematic replaced by another, which is fine.
The reflector has an almost unbeatable value for money. With a budget I know nothing better.