The Membership is a simple price reduction (about 14%), to make it easier for you to come more often.
It should not be confused with a binding contract.

Shortly noted :

• Members can buy the Membership Blocks of 10, and only members can use them (i.e. valid membership).
  
  
• The same applies for the Unlimiteds. Members buy them 14% cheaper, but the membership has to be valid as long as the Unlimited.
  
  
• Membership costs 43 € regular and 35 € concession - valid for 366 Days.

On top of the 14 % Membership reduction the concession for students, etc.. still applies.
Members can also leave their personal mats in the Shala, when there is enough space.