Excellent pasta, pizza, and well everything. The preparation can be hit or miss at times but the ingredients have made up for this on every occasion in my opinion. This place has been around for as long as I can remember and it has always been excellent.
The restaurant has a 50's or 60's mob like feel, this is likely due to that it has been the same for countless years. I always feel like Goodfellas or some other mob classic could have been filmed here. On a week night, you may be the only one in the place which is sad for the restaurant. I personally find this to be a plus as I feel as though I am in on a secret no one knows about. Service is slow but not in a bad way. I think this is an Italian thing not to be rushed into eating quickly.
Dinner salads are absolutely huge and can be shared with a date adding romantic touch to the meal should that be your goal. Pastas are homemade and the lasagna is the best in Pittsburgh Area. Pizza is different than anything else I have ever had but absolutely excellent. Warning: you will crave this stuff after eating it.
At any rate, I highly recommend this place if you want quality Italian food at a great price. Tillie's don't change a thing, I'm sure Matilda (the founder) would be proud.