Whether to use the solution or not is going to be context-sensitive. If you have a strong Microsoft team, you can probably handle this. If, like my team, you also have a dozen other vendors to consider, it's not just the operating system. The pattern I've seen over time with WSUS is that it has the potential to be a fantastic product, yet it doesn't feel finished. People try to implement WSUS, and context is important. In my context, we're a small business without teams of Microsoft-certified people. We are just trying to use what's available to achieve a goal, and WSUS is fine, however, not the best product out there. The business in America often tries to do more with less. I would not recommend it to a team of my size. If a company had half a dozen or a dozen Microsoft-certified people, I'd say, run with it. For a team of my size, no, absolutely not. I would rate the overall solution a solid eight out of ten.
