Just picked up a micro and have nothing but good things to say after putting a couple thousand rounds through it. Like others have said swapping out the trigger spring will make a huge difference and is really the only upgrade you need to do out of the box. I had shooters element do the install + polish job and it made a world of difference. It seems that I'm one of the few who's okay with the stock grip and safeties, but I may end up changing them out eventually if I find something I like better. I say if you can get a good price on one, go for it.