Installed that tt protector when I was working as a messenger to protect the frame from locking up 100 times a day and as a winter bike it offers some good padding against freezing oneself to the top tube and if one was to go down on the ice it might save one's knee / leg from getting bashed up.
Ruptured the bursa in my knee and opened it up for half a dozen stitches when I slammed my knee into the top tube of this bike's sister... that kept me off the bike for almost 6 weeks.