Definitely more than a 3.5, FOR SURE! Taste of Punjab came highly recommended by a friend and I finally got a chance to try it out.
It is just North of the Airport, in an industrial area, so keep that in mind when you head out. There's nothing really in this area, unless you're attending the Hindu Temple OR an event at the banquet hall next-door.
I ordered the Goat Biryani (you can choose level of spice, ~$13) and Butter Chicken ($10) was recommended by server who said that it's completely different than other places that makes this dish sweet. It definitely was not sweet, but more on the tart side and spicier! Biryani was "wetter" than Hyderabadi-style biryani. Both dishes were really tasty and there were leftovers of both dishes.
Server was lovely. Atmosphere was a bit quiet for a Monday evening, but a few pick-ups and diners. Pretty chill place, as opposed to hectic.
Other than the industrial location, the only thing that I'd take note of is that food came 15-20mins after ordering. I believe that everything is made to order hence the wait time, so do not come here a hungry, hungry hippo!