Burger Shop

I’ve visited this place three times on the taste of its burgers alone. However, there are too many minor issues that add up over time.
My first visit was a dine-​in, and I had to seat myself. I had to wait 15 minutes before someone came to take my order, which I did not get until 30 minutes later. This suggests maybe one chef in the back, and two waiters in the front. The burger and shake were great, but the wait and the over all service was unacceptable. The fries served were too greasy, even by Five Guys standards.
My next two visits were pick-​up. I tried for delivery on both occasions, but the delivery man was never there. All food was served in Styrofoam, and I could swear that the cup they used it at least 4−6oz smaller than their inhouse serving for shakes. Food was still good for the first pick up, but the second pickup, the shake was COMPLETELY watery. All other food was good, although I am not sure why their dipping cup for the sauce was nearly half the size of the shake cup. It’s WAY too big.
To sum up —
PROS: Quality of burgers and buns are excellent, and the prices are marginally cheaper than Five Guys, at least if you’re dining on Staten Island.
CONS: Anything beyond burgers and shakes are average to slightly above average, which doesn’t justify their cost. Restaurant is WOEFULLY understaffed. Orders take a minimum of 25 – 30 minutes to process, assuming they don’t get confused. No delivery, even though they advertise it.
They should simplify/​trim down their menu, and get rid of delivery entirely, having that extra staff member dedicated to either taking orders or cooking. Until this is resolved, I do not think I can recommend Burger Shop, which is a shame, because their burgers deserve a second look.