Dollar for dollar the Lone Wolf Glock barrels are the best value on the market. Most, but not all, of them are flawless right out of the box. One thing you should be aware of, though, is that these barrels are made in China to very tight match-grade tolerances. (More than a Glock really needs; and, personally, I think the metric to inch conversion contributes to these very tight tolerances.)
I've never heard of a: Bar-Sto, Schumann, Kart, KKM, or Jarvis barrel needing to have its chamber polished or the mouth opened up; but, I'm aware of several owners who've needed to do this with an LWD barrel.
On a range pistol I wouldn't have an objection; I can, and have, done this work myself. The LWD barrel is, both, a good value and a nice piece of steel; however, if it were my carry pistol, I'd spend the extra money and go with an impeccably made Bar-Sto Precision barrel.
In fact that's exactly what I did on both of my Glocks; and, that was, like, 10,000 flawless rounds ago.