Greeting gent's this is my first post, lots of great info here btw, so I'll throw my $.02 in as I was recently shopping for a mill as well.
It's a step up from a Drill / Mill and will be more rigid due to the overall weight but the head is mounted similarly. It was high on my list, the main issue I have with it is:
Max. distance spindle to table: 12 1/4" Not a lot of room after fixtures and tooling. If I have a work piece 6" or 7" high in a vice that's another inch or so off the deck plus tooling in holders that leaves very little room. I have seen your work, you reels are very impressive, and height might not be an issue. I went with a
Precision Matthews PM-45. More than I need but I know it will handle anything I'll throw at it. It should be arriving in a couple more weeks, hopefully the noise of a gear head won't drive me out of the garage. I also looked at the Industrial Hobbies mill. A definite step up but read too many horror stories of wait times. Maybe a PM-20 or 30 mill would fit the bill or the Grizzly equivalent? This is the
big brother of the one you're looking at if you need more travel.
In the end I went w/ a RF-45 clone as they have a large following for support and upgrades even to CNC, but at that point I'd go a different direction.
HTH.