Yeah, often. It is comparatively slower than other sites. Sometimes it says "server error". Sometimes the buttons such as "submit", "comment" are not working well. Sometimes I can view 1 comment only (out of a no. of comments). Perhaps italki is trying to test our patience. We'd better wait for the improvement.

All the time :/

I don't know why but it gets slow for a while, so I decide to sign out now!

yes. Sometimes there is a problem with the page. Sometimes the "submit" button works so slow. And I can't see my friends birthday. I can't see my group members too. I'm wait for the improvement.