Hands down the best support I have ever received. A slight modification was done immediately on purchase and now, after years trying to get the categories/subcategories to display a certain way - voila! Everybody should get this, it's worth every cent.

I can't say enough about this component. It's rare I buy commercial components but this one makes Joomla complete if you want it to truly function as it should. I had a lot of installation and configuration issues but the developers sorted them out and went above and beyond to sort out a modification to my template.
I don't know if 1.6 will have acl functionality anywhere near what this can do but I doubt it. It allows and deny's access to users on every level and is just what I've been looking for for years.

Just so you know, I rarely leave feedback either, I just had to let people know that this component really is the real deal.

I'm finding CB great but I agree that the display of the user lists is awful and it seems extremely difficult to customize for 1.1.