I am definitely a fan of JJ's Deli - it reminds me of the type of place that I would frequent when I lived back in NY :)
The staff here is awesome... when you come here for a while it becomes kind of like a Cheers... where EVERYBODY KNOWS YOUR NAME!
They are usually very punctual, which is important with my schedule... when I call in an order it is almost always ready on time. Over the years I can only think of a few occasions where an order wasn't perfect...
A few of my favorites are their Turkey Burger... I love this with cheese + grilled onions + grilled peppers ... amazing! I also love their Greek Omlette, which I typically get with Egg Whites and the JJ's Potatoes (JJ's are nearly as awesome as my moms homemade potatoes!).
This place has a lot of awesome sandwiches, and it is quite challenging to find a NY style deli in AZ!! I only wish JJ's stayed open later, so that I could order the goodies into the evening hours... but overall I would highly recommend this establishment and if they ever extended their business hours I would come here even more regularly!
The store is nothing too fancy, but most NY Deli's are not known to be glamorous because it's all about the FOOD! The prices here are fairly reasonable for North Scottsdale and the service and food quality is consistently on point for the most part!