I have a withings and I really like it. Their privacy policy made me feel better about allowing my info on the cloud. You can run it offline (it sends weight via Bluetooth to the app but won’t show 7-day trend an scale screen without wifi). I don’t mind that, so I leave it disconnected. I don’t use a home assistant though so I can’t speak to that part.

I have the withings watch also, so I use the app as my catch all health tracker which works well. it’s nice to have everything together. Can’t speak to any others but I’d recommend withings.

I like the look. One thing I would like to see is integration of the community search tool to make discoverability easier. Something that shows what server each community is on but also will allow you to search across servers in case you don’t know where things are, and a way to view the list of all communities if you want.