I've been poking at it and helping people use it for a while now. It has a very nice User Interface... to me that is one of its strongest points. It should stick around since it is made by the guys you mentioned and they have loads of customers now. It has some issues that need to be addressed as all tools like this do.
It is mainly a marketing tool and needs work to be a better training/teaching tool esp. in the areas of privacy. It has the unique ability to include pre-recorded video, but that too has some challenges. I just trained a client how to deal with that part today.
I'll be doing a members only show on the tool and will have one of the support staff with me in that JamSession. If you want the skinny from someone that knows HOA and won't confuse things and start talking about HOA stuff instead of WJ stuff, you may wan to check it out, but it will cost you 1 month's membership fee of $47 to do so our membership group. Here's a post announcing the session... https://plus.google.com/u/0/108210288375340023376/posts/CJ8ijnbRhrP