Text, voice, video, task management,
and file sharing all in one place.
We prefer ChatWork for texts over Skype since ChatWork allows us to store all chat logs in the cloud, in which we have access from any device.
I used to stay up all night because of 16 hour time difference with Japan, but I don't have to do that anymore. I work 20 hours less overtime each week.
Chatwork's system which anyone can use easily played a big role behind TEDxKyoto's success.