I have a P30L in V1 Light LEM trigger configuration with night sights. I really dig the gun. It shoots very well, I prefer the paddle mag releases (hence my disdain for the newly released VP 9-B), the ergonomics are outstanding and very customizable (though I keep the standard medium side panels and back strap), and the gun is easy enough to carry if you're already used to carrying something like a P226, Glock 17, or full size M&P. Having said that, I stopped carrying the gun about a year ago as I was finding that the grip would chafe the daylights out of my side when carried against bare skin during the warmer months.
Now for a couple of not so hot things about it, if you're used to a striker fired gun, it will have a learning curve with respect to length of the initial trigger press and the distance to trigger reset. The P30L was bought as a lighter weight daily carry gun to take the place of my Sig P226 with an SRT trigger. I found that it took a good few hundred rounds to get accustomed to the trigger to the point I wasn't short stroking on follow up shots and was comfortable to carry the gun. Price is a downside. Let's face it, HK pistols are a constant reminder that being cash strapped can suck. The gun is expensive, replacement/spare parts are expensive, and magazines are expensive (generally between $45 and $50 for the P30/VP). Next downside, accessories (holsters, etc.) aren't as widely available for the P30L. Final downside, is the goofy trough in the bottom of the trigger guard. Personally, I have not had issues with it rubbing a blister into my trigger finger, nor have I had issues with a glove catching in it, but there are reports of others who have had this issue.
At the end of the day, the negatives that I have listed are nit picky niggles, a few of which will iron themselves out with some practice with the gun. If the gun is being purchased as a range gun and carry isn't in the foreseeable future, go for it.
