I've got a VP9 LE, and IF I had to do it over again, I'd have just gotten the regular model.
I'm not a fan of the meps at all, I have a distinct dislike for 3 dot sights. So for my:
SD Guns I go with Trijicon HDs
Range/match guns I go with Dawson Precision fiber optic fronts and plain black rear sights
That's just me though. Sooner or later I'm getting rid of the stock NS and replacing them with Dawsons. Would have done it by now, but my VP9 sort of fills a back-up/loner gun role as I'm primarily shooting my P30L these days.