toan-hoang
Son
Personally I do not see much value for a follow in practicing with a partner.
Practicing with a partner in a constructive way can produces fantastic results, it is more than just following, but also learning to identify where you can possible add your own styling without interrupting, experiencing different patterns and also aspects of salsa which is partner based e.g take spinning, solo spinning and spinning with a partner work are two completely different skills.
Private partner work practice should be supplemented with social dancing of course, but it is all about finding the right mix.