I recently bought the envelope along with my Galaxy Tab 3 8.0. First impression: looks as far from quite nice, fits well. I personally like but not so much that the cover in the closed state so wobbles back and forth. But perhaps in this construction (I wanted something light and thin ...) not otherwise possible. The active damper is working properly. However, the set-up function is a rather wobbly affair. The workmanship is ok for the price, but could be better (I'm afraid the shell is not as durable).
In summary, therefore: +: - Fits well - Very light and thin - Protects the tablet well - Active cover works
-: - The lid wobbles - Tilting of improvement - Processing could be better