This place could not be more different from the Walgreens on the Capitol Square. Every time I've had a prescription sent there, it's been filled quickly and without any problems.
On one occasion, I made a mistake and gave them the code for the wrong type of pills. When I arrived to pick up the prescription and discovered the problem, they were very nice and filled the correct one in literally five minutes.
Note that normally, I do send my prescriptions over ahead of time; given the high volume of student traffic, I think it's probably a good idea to avoid waits. Even the time that I had to have them refill something on the spot, however, it didn't take long at all, and I've noticed that they seem to have quite a few people staffing the pharmacy at all times.