Usually reviews are done after the item arrives. Please read other reviews for you get to know the format. Usually you'll need a LPM, and a caliper to determine what the divergence is. Also what transverse mode it displays, along with power ratings. We need a link to the product, price, and some pictures.
Saying "Hey, this is cool" does not make the cut here. We want all the info you can squeeze out of it, along with photos. This way we can decide for ourselves if we think its a good deal or not. If you are not prepared to go the distance, you're wasting your time, and ours.
Good luck. :beer: