For me I love Alexa which has worked brilliantly for me such that I do not need to touch a switch anymore since I've moved in. I'm running a Fibaro/HA bridge/Alexa ecosystem for all lightings which are dimmable, operable blinds and of course door lock. I've also set up my aircon and various other switches with IOS and Alexa directly and it really works wonders.
I want to be able to dim all the lights in my house to specific percentages, curtains and blinds to open up to specific percentages, programmable scenes based on sensor settings or timing, controllable voice and app, running almost instantly.
This is how I ended up with what I have after consulting my smart home expert. Anything they have recommended is entirely correct. They have experience with all sorts of systems, diverse ecosystems, various products and combinations ... etc.