I must admit that I am always disappointed when I see that someone has decided to cover their antique building with it. But I don't automatically think of it is as an inherently a bad product. Aside from the aforementioned, my objections stem from the fact that it often is installed to cover a symptom instead of determining what the actual problem is and correcting that. For example, if you are having a hard time keeping paint on your house, there may be a significant moisture problem. Covering it with siding only takes care of the symptom, you still have a moisture problem which needs to be addressed.
Windows are another area of concern.
We often rebuild existing antique windows instead of replacing them and sending them to the landfill. It is usually very cost-effective and an important decorative feature of the facade is preserved. Sometimes, usually when the original windows are gone, replacement is an appropriate action. We always try to replicate the size and configuration of the originals. Make an informed decision.