I am the recent recipient of a new Blue Label Glock 23 Gen4. I've had time for only one day and a box of shells at the range, but am quite impressed thus far. Prior to this I carried a Kahr MK40, but it was a little small for good control and was a little uncomfortable to shoot unless I used the extended magazine. I've ordered a couple of custom holsters, then I will get comfortable and spend plenty of time practicing before I leave the house equipped again.