I bought this product as well as a folding fake leather case from an EMF competitor. I like this one better! First of all, after using the other product for a month, it was already starting to disintegrate at the folds. This one I've used lightly for about a year and it still looks new.
Also, I've seen a video of investigations online into whether these phone cases work; what they suggest for the folding ones is that they may cause the phones to work harder and put out even more EMF when in use, to counteract the block. With this one, it's completely shielded when not in use, and then works as normal when removed.
I stopped by the Apple store to ask some questions about my iPhone and the Genius I spoke with said that the plastic case I had (that came with the EMF shielding bag) was a good one.
I like that there is a pocket for slips of paper, or for paper currency.
The competitor's product only shields on one side, so you have to be careful which side is touching your body (if you have in in a pocket). With this product, that doesn't matter.
I put my phone in the bag at night, too, even when it's off. I like this product very much!