Definitely became my default. The level of adjustability is spectacular, as is getting the right length trigger shoe for my hands/grip.
Dots are so much personal preference... and depends on if it's range, carry or competition. Generally, spend more get more, but what used to be garbage brands are perfectly functional for range and competition guns now. Quality has stepped up quite a bit (Swampfox, Cyelee, etc.). For anything I would carry, Holosun would be the lowest I'd go, with a preference towards Vortex's Defender series and the actual RMR/SRO's from Trijicon.