After a week of playing around with server core I’d say it’s worth sticking with. There’s a bit of a learning curve, but it gets easier to use precisely because you can’t do anything “normal” with it. There’s no explorer, no IE, no control panel etc. You can still install normal programs (such as MDT and WAIK) but basically you end up only using the same few commands over and over again because that’s all you can do. The only thing I’d imagine is tricky is IIS; there seem to be a lot of IIS options to install when running dism /online /get-features so I’d imagine it’s tricky getting the right combination.