I love a fresh sub, and Poor Boy Subs on Clairemont Mesa Blvd makes them fresh for you. They're in the strip mall just west of 163. Only after you order a sub sandwich here do they start slicing the meats. That is, I believe, the only way to make a sub. They also come in sizes for any appetite - 4", 6", 8" and 10" - which is great because then you won't need to buy any more than you want to eat. There's the usual toppings for you to call out as they're making the sub right in front of you - lettuce, tomato, etc.
The restaurant itself is nothing out of the ordinary - the day we went there their air conditioning was not on, or it was out of order. The bench seat booths are typical of a sandwich store. There was the typical fare for soft drinks (self-serve). I did not notice if they served any beer or alcohol.
All in all I would go there again for a sub sandwich because they make it fresh. The only criticism I have is they should rethink the bread they use. It was very bland both in taste as well as texture. I believe many people underestimate the importance of the bread in the making of a sub or sandwich.The bread is just as important as what goes between it.