The dot is decent for the price. If you want to use it on a defensive rifle (assuming it’s the only optic you have) I highly recommend you change the factory mount to something duty grade like a American Defense, Midwest Industries or even a budget UTG mount. The optic uses the aim point t1/t2 mounting pattern so shop around.
Besides the mount being subpar, the optic has not died in me, maintained zero after 2,300 rounds of 556 (after mount was changed). If you have some spare mounts laying around, definitely grab these when they are on sale, otherwise buy a Sig Romeo 5 instead.
The price is right in the ball park of the Romeo 5 and you’ll get more from the Sig for the same or even less money.
Yes it’s very reliable. I’ve been using mine for quite some time. Zero issues. Truglo’s higher end red dot optics are well worth the money. They’re cheap but punch well above their price entry in quality.
I would put this on par with the $200 Holosun models. one thing I can say about the true Glow dot itself is that it does not have that led flicker that is distracting to some people. it is a solid smooth and rich colored dot both the red and green.
I put this up against a holosun Green Dot. in fact I think the emitter on the truglo is smoother and richer although it does not have as many brightness settings