Honestly Bastian, I have fought Gutenberg since I heard about it. It wasn't until I built our block library that I started to believe. That being said, the core blocks are not nearly enough. We have to use some 5+ different block plugins to build what we want. But it's still possible.

What I really love is the decisions that were made on performance for the frontend (not so much the backend interface). If blocks are coded properly, they display beautifully and don't give you the performance issue other page builders do.

I'd suggest you give Redux a try and see how we think Gutenberg should work. ;)