Unless you know what you are walking into ahead of time I would not recommend Synology to someone who wants to host a bunch of stuff and also wants a NAS. I don’t touch any of the container/apps stuff on my Synology(s), they are simply file servers for my application server. For this purpose, I find Synology rock solid and I’ve been very happy with them.

That said, I’ll probably try out the UniFi NAS offerings in the near future. I believe Synology has semi-walked-back its draconian hard drive policy but I don’t trust them to not try that again later. And because I only use my Synology as a NAS I can switch to something else relatively easily, as long as I can mount it on my app server, I’m golden.