Since elemental is *not* MoM2 I would guess you'd be disappointed if you were expecting MoM2.
As to whether or not you would enjoy it... Well that's harder to answer.
I think I would enjoy Elemental for about 10 hours in it's present state, and then become disgusted by it. I'm waiting until the AI is at least improved and the mechanics are rebalanced. One thing I've found to hate, is when i jump into a new game, only to have core mechanics start getting overhauled as I play it. Even when necessary, it just irks me that I 'wasted' time playing the inferior version.
*shrug* to each their own, and yes, that means I typically wait until at least the 1st expansion before getting new games these days.