I'd love to find out some more history on it because it seems very strange and bridge-like. Googling hasn't turned up anything and we were photoing it on a Sunday afternoon so not chance of looking inside for any explanation for the giant tower.
The lab is very good, much better than the local options, I've put their details up in the Mail Order Labs list somewhere in the forums (product availability maybe?). I think it might have something to do with using Fuji film and they're using Fuji machines as well.