I managed to play a couple of hours of the skirmish yesterday thought I'd throw in my two penneth.
Once I got used to it (with no form of tutorial included yet the NO AI option was invaluable) it was an interesting twist on a strategy game. Even with fog of war disabled I couldn't really see what my opponent was doing, the units were too small to identify to the extent that I didn't even know if I needed anti-air or not. Just flooding the map with random troops was effective enough on easy and being able to make feints and direct the flow of the battle was strategically satisfying but I found the tactical layer a nuisance. The factors I felt able to control were speed, effectiveness and ability to traverse land, sea and obstacles. Instead I had to manage a paper-scissors-stone setup that I was unable to see. The idea of zooming down to one of the pinheads on the map to activate a specialised ability seemed bizarre and thus the entire upgrade system was a bit pointless.
The Dragon ended up being a major let down, it had a bunch of abilities on long cooldowns but it was extremely vulnerable and the basic attack was underwhelming. As it stands I don't see any tactical reason why anyone would stay in Dragon form for more than a second. It's a nice little tweak but hardly worthy of being an eponymous feature.
All told though I had fun, I'm somewhere between desperately hoping for mod tools to tweak it towards my preferences and wanting to play more as it stands.