Good enough for me. - Bushnell RXC-200 1x21mm Reflex Red Dot Sights, 6 MOA Dot Reticle

I bought this sight to put on my Hellcat Pro and I'm satisfied with it.

It's got a nice sized window, the 6 MOA dot isn't too big or too small, it's low enough I can still use the irons, and it's always on with automatic brightness adjustment.

Downsides are that it has a bottom loading battery which means ya gotta take it off the gun to replace the battery, requiring you to re-zero it. Also, there are no distinct clicks for red dot adjustment, meaning it may take a bit more ammo to sight it in correctly.

These things don't bother me because I intend to get plenty of practice with my gun and re-zeroing the dot or replacing the battery won't be all that inconvenient.

So, like I said, it's good enough for me.