Only been using a short period of time (couple of hours) but so far everything is good. I am using a 901 to 510 adapter to a low resistance aty. The thing is working great so far. I hope it's durability lives up to my standards. I have yet to try it with a 910 atty but im sure it will work like a 910 atty should. I like the LEDs they are not so bright as to be annoying but visible enough to let you know whats going on. I hit the auto cutoff once but i did it on purpose to see where it was at. Around 10 secs like everyone says. The only time it may become an issue is when the batt starts getting low. Time will tell on that one. The unit itself looks very good. I got the flat black version and i couldn't be happier with it's looks. I will post again after a few days of use to let you know if my opinion has changed but as of now I am very pleased with my purchase
