Just got my beta key last week. It is interesting to see all this advanced talk about a game that isn't even out yet. =)
My first impressions went like this:
Holy shit this game looks amazing!
Production value is through the roof, as expected from Blizzard. Good good!
This is so much fun!
Hmm, no lands. You gain guaranteed deck resource efficiency but lose a layer of complexity. I can dig it I guess.
I must say, 'Taunt' > 'Defender'
No graveyard. Another layer lost.
This game really isn't nearly as in-depth as Magic, nor is it even set up to be.
This game sucks.
So why do I keep coming back?
I see, the battlefield complexity can get pretty immense at times and with the ability to trade creatures, it actually gains a layer that Magic doesn't exactly have.
Arena is brilliant.
This game is worth playing.
This game is worth learning.
I'm having fun so far. At first I thought, "This is Magic for kids". And I still think it has an obvious dearth of overall meta-complexity when compared to Magic, but it is still quite well designed, quite fun, and by no means 'just for kids'.