Re: M&P vtac
I own the 9mm version of it. It shoots just as well as my M&P .45 and .357 Sig. The sights are a big plus. To look at them in a magazine or on-line, they appear to be quite "busy". In your hand, it is anything but. The FO's are very easy for the eye to pick up on in day light, and there is no "bleed over" to the tritium night sights. The same goes for low-light/no light shooting. The tritium's are not "fogged over" one bit by the FO's. The FO's really aid in doing one-handed drills.
You can pick up the sights alone for around $240. A friend had a set installed on his compact M&P .357 sig. But for a total package under $700, not a bad choice.
Only drawback I have seen thus far is purchasing additional magazines with the brown floor plate. IMO, that is purely cosmetic though.