Experiences with SharePoint/Groove?

One of the issues arising from this project is the practicalities of working either off-site or across institutions, namely how can researchers facilitate effective control of data and data collections when they are based in different locations or working away from their institution. One potential solution that has been suggested in the course of our data management interviews is Microsoft SharePoint 2010/Groove. I am interested in following up on this. So, does anyone have experience of working with SharePoint 2010/Groove? I'm interested in hearing about it's performance from a data management perspective - particularly in terms of shared workspaces, remote access, version control, and data security. Does it work? Does it work well? Is it easy to use and adapt to? What doesn't work well, what are the bugs? What could it do better? I'd be grateful for any insights and testimonials.