Thinking of using a new self service POS system

Hi, I work at a pizza restaurant and in the staff meeting an idea was brought up to move towards the concept of a self-service ordering system in restaurants (via something like an iPad), where you place your own order, at the table.
 
I would like to hear what you think on the matter, especially:
 

• What you look for in a restaurant experience, and whether this concept would fit
• Would you be willing to try such a system
• Your perceived pros and cons of such a system
• What features you would like to see in the interactive, self service menus
• What restaurant environment, if any, do you think it would be best suited to
• Any further comments you care to add

 
Thanks for your time, and if you have any questions, please feel free to ask and I will try to answer as quickly as I can.