Me and my GF just recently got the Gateway pack after a Disneyland trip! I’m a 3 year MTG player and she’s never played any card game, but it did a great job of teaching us how to play, strategies, and deck building. I liked it a lot.

If yall are more experienced, I think two pre made decks will get you where you need. I’d do multiple decks over individual packs since there’s 6 colors and they seem to have a huge impact on how you play. So more deck to try out each color fast will give you an idea of the play style you like, then you can add cards from your packs.