I've used Hakko, Bushnell, and now I'm pretty fond of the ATN Digital Compact. It lives on my Mk III, and it's pretty happy there.
My first Bushnell Trophy died, flat out, in 5 minutes. Second one is OK, but zero shifts with reticle change. It's now on a Mini-14. I'm not thrilled with a tube red dot on a carbine.
The Hakko Panorama was very accurate, but experienced some reticle shift. Nice big open lens. It's back in its box. It will probably go back on the Mini-14.
The ATN is click-less, reticles are dot, post, post-and-dot, and do not shift at all. It's small, and very light. I haven't taken it off yet, so I can't swear to repeat-to-zero ... but if you're splitting hairs on bullseyes, I don't think anything repeats completely. The weaver mount stays on when the battery is changed --- the upper body comes off, which may be a positive, in terms of zero.
Far as I can tell, the ATN is a keeper. Not an Eo, but darned good. All of these are around $120 - $160, as I recall.