I haven't had a grip before, but thought about it for some time and decided to try it with the new camera (for the price, should be a small risk)
I got it today and can just second the review...
looked like the reviewed one, including the packaging,
yes, the lock wheel seems to be the most flimsy part and the gap around it is big enough to notice light coming from the other side,
the ergonomics isn't as great as I hoped (some parts could have been sculpted more... handfriendly, maybe), but it works good
... and, mine smells too... not in a pleasant way, so i hope it is just a smell that's going to disappear and not some nasty chemical that I will press on my face