Calendar and MyRoundcube questions

[IGraham]

Hi

Synology NAS with roundcube 0.9.5 installed

I've been using Thunderbird as my email client for a few years but with development halted thought I'd have a play with roundcube. At the moment I'm 'evaluating' and haven't actually set up an email account as I'm assuming the core of roundcube email will just work ok (yes I Like to kid myself).
What Is concerning me is the plugins, I need a calendar that will link to Google calendar and as far as I can tell the kolab calendar is problematical and doesn't link to google.
However MyRoundcube (which is quite separate from roundcube ? Apparently) will do the calendar and the sync ok and lots of other plugins as well. There's even a plugin to install plugins - though all this 'extra' has to be paid for.

Questions
Am I right in thinking the Kolab calendar wont connect to Google calendar - reliably and without on going hassle
MyRoundcube is this the way to go - I'd rather not.
Any thoughts on MyRoundcube