I go to PoS a fairly decent amount. This is probably my most visited location since I work across the street.
The food is good. Always fresh, lettuce is always crispy unlike some locations. The staff is knowledgable and in over 3 years have never messed my order up. They also have one of those mix machines where u can customize your drink so that's a favorite.
The cons are really something that they don't control but have to be addressed. The area it's at is filled with several business offices. This means early in the morning and at lunchtime it gets super busy and the wait to get your sandwich is ridiculous. It also is a giant pain in the a** to park. There's also times on the weekend when there's summerlin events goin on and seating is hard to get to.
Quick roundup: if you go at most times, you'll have a 5 star experience, but at peak periods it drops down to a 3 star