I have seen other membership software with ip tracking so that members cannot give their access to others to use. I'm thinking about the need for that on a video training site where ip control would ensure that only the paid member can access.
I don't see that aspect mentioned under your Membership plugin.?
The kind of thing I'm talking about can be seen here.. called Magic Kicker, used with Macig Members http://www.magicmembers.com/ see bottom of page.
That seems to be a pretty comprehensive solution, so it would be good if Membership could cover the same level of fucntionality, at least on the ip tracking side, if not in general.