I set out to build a site around this extension and decided to invest is three other extensions from the same firm. This requires a significant amount of financial investment compared to other extensions. I don't mind outlaying good money when a return of my investment is possible, but in terms of outlay verse quality of return I have to recommend that developers look elsewhere. I decided to upgrade to a newer version with hopes that maybe it would resolve issues arising from the original install. It requires complete removal of the old package, sql tables and all and still brings up errors. I tried to install chat factory but after 4 attempts it finally installed, with errors still showing. This is by far the most expensive outlay of cash since using Joomla, yet it is probably the worst product I have come across.
It's really strange that you felt the need for this review stating it's "the worst product you came across", especially since you are constantly using it and also after placing the review, acquired a new license, renewing the existing one :)