My review, contains spoilers: Well, for the most part it was certainly a different experience! The bags you wear were certainly an interesting touch, but overall I don't think they really added much as you could clearly see through them. That is, after you escape from the tunnel, since it's not possible to see in frog of yourself while you're on all fours.
After emerging from the tunnel, it's pretty much the same experience as you're just going around being tormented by lost souls. The bags (each of which had a unique crime we had allegedly committed) didn't really do anything at this point. They seemed quite strict though that we didn't take them off, but I'm not really sure why—probably so we don't loose them!
After we get past this bit, our bags are removed and we're presented with our certificates. But the story didn't end there... A brief struggle through lots of rubber blinds, however, and we're out.
Overall, interesting to experience all the new things, but generally disappointing.