Positive features
Flexibility : allows various ballot question formats eg. Open-ended questions, multiple choice, yes/no...
Mobility : no restrictions (other than logistic ones) on the location from which Vijay can vote … IBM, IITD, Watson, et. al.
Convenience : Just one session with minimal equipment, and no special skills on part of Vijay required !!
Vijay can use Vaibhav’s I.D. and vote for him.
If Vineet wants, he can see Vijay’s vote.
In fact he can change it !!
Chitra -- does she tally correctly. She might favour Hillary and make her win by counting incorrectly.