First of all, Google Reader is not for everybody. It’s not as simple as iPhone. Users need to be intellectual enough to grasp it, though they don’t have to be smart.
Secondly, it has built-in support for Chinese user to work around the GFW. The only thing you need to do is always using it through https. What’s https? Please refer to Rule No. 1.
Everything you do will be stored in cloud-side. You don’t need to worry about system reinstallaion and hard disk failure any more.
And it’s social. You can share good stuffs, and know what your friends are sharing.
And it’s mobile ready. Actually reading on mobile phone is more fun.