I'm the type of asshole who breaks his phones in idiot ways, doesn't remember to pack a charger for my laptop. And in some cases am unable to carry that much shit with me.
For those who ask "Why use such a service" this is my reason. I do not like being dependent on one bit of kit - while this is fine for some people:
keeping a local wallet, encrypted and archived when not in use, on a clean PC, cant go wrong! 
It's not what I want to rely on. That said, I wouldn't trust any current bitcoin web site with large amounts of funds. I've lost £30 with TORwallet, it won't break the bank. Still, it is important to raise awareness of sites with issues, hence I started this thread.