Very slow-moving line and icky atmosphere. Other customers were very obviously annoyed and were complaining about the line. Once I got to the counter, the service was quick enough.
I asked the cashier for a small piece of packing tape to seal the package I was mailing, and he informed me that they are not allowed to give out packing tape to customers. Since I was unaware of the policy, he said he'd help me out this one time, which was cool of him. However, it seems like such a strange policy for a post office to have. Perhaps this is a universal policy for all post offices... but either way, it was news to me.
I'll return here only because it is the closest location to me, but it's by no means the best.