Live on the West side and wanting to buy a split AC for my home

Have a two story home on the west side and currently have an older split level AC. Looking to move to individual splits so that all areas have control of their comfort and to hopefully lessen electric bills. I’m really hoping for AC brand and installation company recommendations.

FYI… I have heard from multiple people to stay away from Steve’s. Hoping for some positive recommendations or at least which installers or which AC brands to stay away from. Mahalo