Best live chat?

[EricPacifico]

I'd like to add live chat ability to one of my sites. The last time I did this, I used the largest provider and was disappointed at the way the addon tended to drag page loads, but this was also three years ago.

Any experience or feedback about the live chat systems out there?

[Highland]

We use Boldchat. I've not seen any drags on loading and it seems to work well. CSRs don't complain about it anyways.