L1 support seems short-staffed but not terribly so. L2 and L3 are well-staffed. Other than that, I don't really have anything bad to say. I enjoy it here.
One thing to note is that for IT, you are supporting a wide range of AV/access control/network equipment from a hundred different vendors, each with their own unique setup. Oftentimes this equipment will be installed years ago by a different company without much in the way of documentation, which can be difficult to deal with at times, but has always been manageable for the most part. Most of my time the issues you are troubleshooting are fairly straightforward, but every now and then you will be thrown a curveball.