I'm very excited. I have been using elementary for almost 2 years now. I just can't wait until they complete their new installer. Currently you can only do fresh installs, but at some point their installer should drop (although no idea if they'll add that to current release or if it'll be a next edition feature).

I also cannot wait until the hopeful switch to Wayland so we can have multiple DPI displays running together.

Anyway, they at least work really hard to make a good HiDPI experience.