Hi Robert! I hope you're having a wonderful day so far!
If you are considering purchasing a
Disneyland Resort Package for your stay, I think it is a great option. Not only does it allow you to secure your hotel and ticket reservations conveniently, but you also get to enjoy extra perks like discounts at select dining options in the
Downtown Disney District. An excellent dining option in the Downtown Disney District is
Black Tap Craft Burgers & Shakes. Also, those who purchase a Disneyland Resort Package as of when I'm writing this message can also receive a collectible pin and lanyard.
As for your second question, not only can you add
Genie+ for multiple Guests on a single
Disneyland Mobile App, I actually recommend you do so. Having everyone's tickets and Genie+ on one mobile device makes it significantly easier to book
Lightning Lanes.
And for your last question, you do not need to buy Genie+ for your entire party, and you can definitely purchase Genie+ for two people on day one, then three people on day two.
Have a magical trip, Robert, and please bring any other questions that come to mind to planDisney.
Best wishes,
Lola