With many competitors in the live chat customer service field, I have found www.heybubble.com to be the easiest, and they actually provide what they sell customer service. If I run into a problem I can talk directly to them and have my question answered. I also love how its free you can't get cheaper than that.
Zoopim have a serius problem with Internet Explorer 8 And they don't have a solution. In my web site kestore.it IE8 gave 35% of traffic
I checked both and found it very expensive. i rather like Banckle Meeting. its very economic with great user interface and has all the ingredients for perfect audio/video conference. Check it out! banckle.com/...
I have tried both and I found them really expensive. I have found an alternative which works for me in a free version and their paid version is MUCH CHEAPER. Lime Talk works for me. limetalk.com
this works especially well for small businesses who simply want a no-hassle, great-to-use live chat system
We are using Olark for WebSolutionz.in
I am going with Zopim for my chat platform as well. Excellent features and a great team cumult.com
In terms of backoffice support - the best choice available.
Without any doubt the only service that manages to both have advanced features and user friendly interface.
dashboard and mobile app support is awesome