I've been here twice now unfortunately. The first time there was absolutely no wait. From the time of walking in to the time of departure was less than 30 minutes. The second time was about 2.5 hours from entrance to departure. Of course, any urgent care can't plan for the daily unknown influx of people so don't get in a bunch thinking you will waltz in.
On my second visit I figured I had just a common cold, which I did. They did all their testing quickly and didn't just wait for the doctor to order the test and make me wait more. That was nice. The doctor was nice as well, and maybe my experiences with doctors are skewed but what I wanted was a doctor's note so I wouln't have to go to work and contaminate or annoy my co-workers with my vicious cough. I had to ask a few times, and even then I had to ask immediately before my departure for a doctor's note again.
Overall, good experience both times - I'd just like to see them try to actively help you more even if it is a common cold. Other doctors seem be more agressive to ask what they can do to help you (medicine or notes). But then again, I am pretty sure half the people in the waiting room with me had teh same thing I did.