Let me be the contrarian. I have found the Ultradots to be a good value and easy to use.
There are a couple of tube sights in the Trading Post right now (no relation to the sellers). I have one Ultradot II, which has the dot-in-circle option in the reticle. On the pic above is the v.1 model, picked up used here for about $125 a couple of years ago, which has just the dot with a variable dimmer.
I have middle-aged eyes and, for me, the aiming system is more important for accuracy than the brand of pistol or the brand/type of ammo. My groups with a red dot aiming system are 1/3 the size of my open-sight groups, whether I am shooting a revolver, semi-auto, off a rest, or off hand. I keep practicing with open sights because, for me, battery operated sights are a poor choice for self-defense. But for target shooting, a red dot is hard to beat.
I should note that I don't compete, so rapid dot acquisition on the firing line is not an issue for me. That said, I have tried a buddy's "heads up" holographic model like the ones above, and for me the tubes are easier. I spend a lot of time "hunting" for the projection in the head's up sights. I guess if I were in your shoes, I'd try to look through both styles and see what works best. All of the above is just IME, IMHO, so no disrespect to those above who have found what works for them.