The plugin has some potential but it is very early days and there are lots of bugs - for example the maps provides directions to the wrong place, the taxonomy description is all messed up and doesn't work.
Be prepared to do a lot of work yourself modifying codes to get even basic functionality working.
Worth keeping an eye on though because it does offer a good potential - though very expensive if you take on all the addons.
I'd wait before buying though - if they have major bugs in the core plugin then the paid for addons are likely to be buggy too.
Update: the latest version 1.0.2 has dealt with all the major issues so I've increased the rating.
This is not really suitable for operators of a number of websites. This is very time demanding to keep up with all the updates and the problems that those updates bring about including incompatibility with add-on plugins. The site I have this opeating on (until I get time to transfer it back to a more suitable plugin) is without doubt one of the most time consuming and demanding web sites I have ever operated.
I would recommend giving this about a year to settle down and become stable before taking it beyond development and into an active site.
Still worth keeping an eye on for when it finally become a reliable and stable plugin.