Join.me is a user-friendly conferencing tool focused on simplicity and ease of use, ideal for quick meetings, whereas Vinagre is a more technical, open-source remote desktop client aimed at users needing advanced remote capabilities.
join.me
Pros:
Easy to use interface
Supports screen sharing
Allows video conferencing
Provides chat functionality
Offers meeting recording
Cons:
Limited features in free version
Requires internet connection for full functionality