Thanks! I've considered it before but not sure anymore why I did not choose it. Though it probably relates to the fact that we are a small volunteer project with insecure funding (i.e. currently none) that tries to keep a records database of contact information up-to-date. This goes hand-in-hand with complex permission management/input controls (i.e. those listed should be able to submit a request for modification or for adding their record) and the possibility for integrating the result in a website. I don't think such integration tools are included in the free version