@marckohlbrugge may correct me if I'm wrong, but the entire thing is built by hand based on Ruby as programming language and Rails as a framework. There might be some other technologies going on, but that's the main thing.
I'd suggest just trying it for yourself. It really depends on what your body tells you. For example if I sleep 6-7 hours I feel fine, if I sleep 8-10 hours I feel like absolute garbage with mind fog and all that. If I sleep ~12 hours it's totally fine.
So try and vary your sleep pattern over a few days and see what you like best!
Personally I think it can look good when done well. The caveat being that many images with people in them can look very stock photo-ish. So if you have nice pictures that look natural (e.g. unsplash.com) that works!
I'm currently rewriting dotcolors.co in React after building it with Vue. I can give you a headsup once I'm re-launching it. :D
Whats your reasons to switch from vue to react?