We're not too impressed with digichat. They are not very responsive to email and seem to squeeze their customers for every cent possible.
We have a nonprofit customer that uses them that is transferring hosting to us. The customer has the last version installed (not the current) and in order for us to simply install it on our server, digichat is requiring that the customer purchase their annual support license ($447 they quoted since the customer opted not to pay $149 every year for support they don't need/use) plus if the customer wants them to intall it (in the event we have trouble), they tack on a whooping $249 for installation. That's almost $700 simply for my customer to be able to use software they purchased 2 years ago for nearly $600.
Also the customer complained that the chatroom goes down every 2 to 3 days, requiring the customer to kill the processes and restart them for the chatrooms software manually through shell. When the customer asked if this same problem would happen on the new server (linux as opposed to the solaris they are current on), the sales guy told my customer that they would have to purchase the support license simply to get that question answered. My customer asked if they could just install his version on the new server and at first the guy said yes for $249 but then later in the conversation said no, that the customer would have to also pay the $447 before they were willing to do any installation. My customer was really disgusted. He feels they are not worth it. And for their outrageous prices, you'd at least expect them to respond promptly to email inquiries.
I'm going to advise the customer to go with RealChat. Unless you guys have any other recommendations.