Yep, I bought a Delta Point used from a member of this forum.  
It has no "on/off" switch, which bothered me initially.  It comes on automatically when it is moved, so when you pick it up, it's on...riding in the gun case in a rig...it's on.  I've had it for about 5 years now, still haven't had to change the battery.  (Now that I said that, it will probably go dead!)  
I've had it on several AR's, a shotgun, and now it's back on my Volquartsen 22 that I use for rimfire steel matches.  It's a great little sight in my opinion, and it's about the perfect size too.  Larger than a Fastfire, and WAY smaller and lighter than an Eotech.