The good, the bad? Anyone use these? Thanks in advance.

Yes sir, especially if you are videoing your hunt. You can review your shot for placement whether you might want to give the deer a little longer so you don't bump him. Also to retrieve your arrow in case of a pass through or the worse a complete miss.

Yup, good lighted nocks. I prefer the Nockturnil to the Lumamocks

I use them on my deer arrows always. Helps you to tell where the arrow hit and can determine your course of action after the shot.

Nockturnal over Lumenock for sure.

I use Nockturnals - no complaints.

I hate to use them because they are expensive. But for deer they are useful.

That'd be what I use

Went from Lumenocks to Nockturnals. Haven't had one fail yet. The other, expect it to work about half the time. Only problem I've had, is every now and then, when I nock a arrow, it comes on. Then it's a pain to turn off because it's usually before daylight and can't see the dang turn off switch.

Only lighted nock I'll use. Never had any issue with them. Can't say that about any other brands.

I bought a few to try and really like them. They make shot placement easier to see if you like to practice at long range like myself. The only downside is the cost but I'll be putting them on my next set of arrows!