I have not owned or shot either, only handled them at the local Cabelas. The storm is 2+" longer and feels a lot heavier to pick up. I had shoulder surgery right after Mothers day and it's not easy to hold a crossbow up to aim it yet. I was very surprised that the balance of the Storm alowed me to aim it for quite a while. It felt so heavy to pick up that I almost didn't try it. The Micro you know well if you own one. The Storm is narrower of course. The bow that is actually much closer to the Micro, actually beats it for length, width, and is nearly the same weight and performance is the new Barnett Raptor Reverse. That bow is a joy to handle. Vent 150 has a thread on it now. I know some people will simply not buy a Barnett no matter what, but that struck me as a very nice compact hunting crossbow.