How effective are supermarket self-checkouts?

It's awesome, speeds things up and makes life easier
14% (24 votes)
Neutral; it's not a huge deal
29% (51 votes)
Not very -- the lineup is always too long and some people are too slow
36% (63 votes)
It really depends on the implementation and number of customers in the store
21% (36 votes)
Total votes: 174