I recommend this game to learn how to play Magic: The Gathering.
This game was NOT intended for the hardcore fans.
However, YOU DON'T JUST GET STUCK WITH YOUR STARTING DECK. In 8 hours of playing it only completing maybe 20% of all cards in the game. I have a very decent Red/White/Blue Control/Speed deck. Lot's of reviews keep dogging this, but honestly, have you ever played with a Starter deck and bought booster packs? You'll be in the same boat in real life! So, I've been there done that. Not an issue for me to grind boosters.
Though I am not completely satisfied, I have also been playing for the last 8 hours testing out new decks and cards which I haven't gotten the chance to find yet in the actual physical TCG.
If you want a free testing source: Get this. It's totally worth especially if you are patient.
If you want to learn how to play: Get it. Though I feel like some things are a bit... weird in this game. The ideas are all there and it's a good tool to learn how to play the actual TCG.
If you want to learn how to build a deck: Get it. The booster packs are actually better than physical ones. You never have to worry about land cards, because the game supplies you an infinite amount of basic lands, and later on you get plenty of multi-color. I've gotten plenty of Mythic Rares since I started playing today. I've gotten a great Red/White/Blue deck started.
If you already know magic and have a great deck IRL: Don't get this. It's not nearly as enjoyable as playing at your local game shop.
If you are impatient: Be prepared to spend 5-20$ on getting a decent deck early on. Otherwise, this might not be the game for you, just go out and spend that 20$ on a deckbuilders Toolkit.
Overall I rate this game a 6/10. The lack of Two-Headed Giant is 3 points straight off the bat. But some compensation for the deck building and allowing you to create your very own decks.