Here's what I observed - Very slow response time to requests to the server. (4x of Facebook response time) - Serious usability and JavaScript problems. - Mai

Here's what I observed - Very slow response time to requests to the server. (4x of Facebook response time) - Serious usability and JavaScript problems. - Main point did not made clear. Just signed up, auto-followed 12 friends and still no idea what to do with it or why would I use it. - Back button does not work at some cases with AJAX URLs with URL hashes (.../#/foo). Breaking the web experience.