At <50mw I don't think so. Nice buy, if your happy with it, then it will do! If you ever want quality lasers that have nice divergence and stable or overspec performance your best bet is to go with o-like. You maybe paying more with the current seller, but you are not getting anywhere near 50mw of 532nm output. O-like will give you a print out of the power output of your laser and more then likely it is up to spec or overspec. I'm trying to say, you may pay $x for a 50mw green but might be getting a 70-80mw for a lower price. So the convince factor doesn't really play a role in this, unless your uber lazy/anxious.
Peace –Adrian