I have being using it for 2-4 years (can't remember exactly) and got the same 0 problems I run into Vim. Earlier versions required you to recompile NeoVim to enable new features for plugins.
Yesterday I installed NeoVim in my new laptop and it was a smooth experience: Installed it using Ubuntu package manager, installed Vim-Plug for managing plugins, copied my old init.vim (or .vimrc), run vim and everything in order.
I am really happy with NeoVim. I faced no problem with it that Vim could not resolve but I know the insides being a better ecosystem for core and plugins developers, so I will stick with it.