1. Free and legal way to connect to IRC network, no need chat software again (so you no need buying chat software license or using illegal crack if you dont have money, etc), only using your browser. Will help internet cafe, home, school or office.
2. Have bussiest server and channel database lists, by country, or by topic, that up to date.
3. Interesting and Easier to use. Change nickname, change server, change channel, whenever you like. Able to use colors, smilies, icons, etc.
4. The text chat can be saved.