Overtime does have a sense of hype to it especially if it happens more than once, honesttly I'd prefer this over Smash Bros' sudden death matches.
Me too, mainly because there's a lot more riding on overtime. Somone that is losing initially can be the winner in overtime which is why there's so much riding on overtime.
I have had 4x happen a couple of times. Unfortunately that was a few days ago when the beta was having frequent issues with Overtime sessions. Needless to say, an error code would always ruin the excitement =(