The best thing about this software is the frequent updates they release with great new features and all free if you are within your service period.
I am waiting their new version 10 which will be great as i saw from pre release screenshots
support is good and your ticket will be responded within hours from submitting.
prices compared to reliability are great you can start a chat room as low as 20$ per month.
I would give this software 10 out of 10 and recommend it to any one who would like to add a chat room to his website