2017.. how do I connect my new Nest to may new Smarthings 2.0?

I have just bought a Smarthings, fairly techie and I need to figure out a way to hook up my existing Next to Smarthings hub. I read some post here but hey are from 2015 and people say things dont connect well and stay connected well. Any one have done this with Smarthings hub 2.0 lately successfully?

I haven’t, but a search found this active discussion: