Why I don't use Norton Identity Safe

So, why I don't use Norton Identity Safe?
The first and the main thing is absence of possibility to use the portable version.
I need portable version because I don't have an administrator permissions for installing client at work. Using the web interface is very inconvenient...
The second thing is private notes, which has limitation of symbols in headline.
So, I'd like to use Norton Idendity Safe, but I use different password manager.