I have just used my reflector set for the first time today and I'm really impressed.
The set was very easy to use. You get a springy, translucent inner with a double-sided, reversible zip-on cover. It is simple to change options and the zip has a nice smooth action. Putting it away isn't too much of a struggle - just twist and fold it down to size and slip into the cover bag. It's light enough to carry with you and hangs from a handy loop.
You can use it as a reflector, a diffuser or as a background; versatile too.
Do choose the larger size reflector - it's so much more useful than smaller sizes.
Photographic equipment is often complicated and expensive - this isn't!