After living down the street from Philly's for ~7 months, i decided to check it out. For the price of a cheesesteak (i got the equivalent of a 6 inch), which is very reasonable (under $6), i definitely recommend them. The sandwich, I got the Chicken Cheesesteak, and it was a good sandwich for the price but was a bit par for the course
Giving two stars because of that and the fries. Avoid them at all costs. They're overly salted, you can only order them in one size, and the fries in my order were either overly crispy and crunchy or a soggy mess.
I'd recommend Philly's for a movie night or similar event when you want to get quick sandwiches to eat. All in all, i was mildly impressed but don't think i'll rush to return.