I just checked out the Calculatem site and demo. I gotta tell you, it looks very impressive. However, I would really be concerned about becoming dependent upon it. I already find that the internet poker environment itself will soften you up quite a bit by providing the bets displayed, pot size displayed, etc. In live brick & mortar games and tournaments, you have no such luxuries. It's your responsibility to keep up with these elements. The online player who is accustomed to having his info spoon-fed to him can be easily overwhelmed. Believe me, I know. I've been there.
Poker is a cerebral game, as cerebral as chess or any other "intellectual" pursuit. To have everything spelled out for you during the session, including odds and play recommendations, just seems dangerous to the health of your game in the long run. I haven't completely ruled it out yet, but I'm leaning toward taking a pass on Calculatem.