What are some alternatives?
Wild Apricot - Wild Apricot is a membership software with friendly and knowledgeable support.
Bitrix24 - Bitrix24 is a free (for small businesses) social enterprise platform. It is a united work space which handles the many aspects of daily operations and tasks. Create your own social intranet in minutes!
Kajabi - Kajabi is the only Knowledge Commerce platform today with everything you need to market, sell, and deliver your knowledge online.
Samepage - Easy to setup collaborative tool and file syncronization cloud application
YourMembership - YourMembership provides membership management software integrated with social networking features.
Onehub - Onehub helps businesses securely share and control files in the cloud.