Based on how storybook circus has held up with its bright colors, I don't see any reason this would not look good for quite some time. Even though others seem to think this is a cheap way to go, I think it is a very creative and smart way to go. The original PH was not a nice surface (multiple levels, stucco or synthetic material, not designed to be attached to) where they would have to ring the sphere with an attachment surface that provides a solid mounting situation. And they would still have to deal with all the vents, etc. which would provide a visual intrusion, chance for leaks, and add to the install cost. I think they have solved a plethora of problems going this route. As a construction manager, I'd be thrilled with this solution. Bolt metal to metal, attach and stretch, will look good when stretched and properly trimmed, and should hold up well over time.
Bonus - if you wanted to ever do a graphic overlay on a building, you could attach new material pre-printed with a graphic. Could provide some cool opportunities down the road. I bet you could also do projection mapping to this nice smooth grey surface.
