I bought one of these in 2003 and used it right up until september 2010 when i lost it, there was no damage, it never once blew inside out (and it took a massive hammering in all sorts of weather), the automatic mechanism didn't break and all in all I thought it was great.
It performed its primary function and kept me very dry and easily fitted into my man bag (a normal sized messenger bag). I liked it so much I brought a direct replacement which as time went on is now cheaper. I would reccommend this to anyone needing a compact umbrella who is out in very wet conditions. I does feel light but as I said before the only reason for replacing it was I lost it :)