Porting is great for competition guns, sure. Reduces muzzle climb and allows for faster follow up shots, IF you got the right ammo to make the compensator do its job properly.
On a carry gun it not such hot a deal - if you had to fire from the hip, you could get a lot of hot gas residue and tiny flakes of lead or bullet jacket blown straight up your face. When fired in the dark the muzzle flash is both impressive and also potentially blinding.
Two of my buddies have MP 9 Shields, one has the basic model, the other the ported performance center model. While being a little faster on double taps with the PC version, for the reasons above I would only buy it as a range gun or maybe for IDPA, if I carried a shield and wanted the extra edge in competition.
If I had a chance to pick a ported or non ported Micro 9, I would probably pay more money just to get it without the ports.
But to answer the question, no, I do not have ports in my Micro