I looove Grimaldis. It's the best pizza in Scottsdale (IMO).
The only drawback is the costly toppings-- if you want a well-adorned pizza, be prepared to see the bill rack up quick!!
The salads are awesome with the perfect amount of dressing, the crust and pizza sauce is spot on! Not to mention their AMAZING Birthday deal--free pizza with 1 topping for your birthday! They don't even care much about the expiration date as long as it's within the month (they barely even check).
Service is awesome and I love the location. No reason not to stop by every time I'm back at home! YUM!