Opinions about heartstone

So I started playing last year, since it didn't support controller I waited for an android release, now that is live and optimized I am really enjoying the game a lot. I play paladin and mage mostly.

I consider the game a bastard child from magic the gathering, I was a heavy MTG player since highschool and even won some fnm and releases. It is very casual tough since all you have to do is to wait to have mana and boom, you can play anything, and that was basically the reason I stopped playing MTG, useful land cards tend to get really expensive.

I love that you share your collection and the daily quests.

So which do you prefer? portable or desktop or laptop to play Heatstone? and what is your opinion about the game?