Hey, PicnicHealth founder here. We're probably too new to have any kind of a consensus but would love to chat offline about the company (Noga at picnichealth) It shouldn't be much work for you to get things set up.

I spent a lot of time trying to get straight what went wrong with google health and, while there are lots of theories, I'm got convinced that data availability played a big part. That's what's finally changing.