I like the leitai for the following reasons:

1. It limits running to a point,
2. It teaches you how to corner your opponent,
3. It is cheaper to build than a ring with ropes.

I don't like current leitai or leitai rules for the following reasons:

1. I think obtaining points by pushing someone off the platform is lame. Though causing them to run off should earn you a point.
2. The leitais that I have seen are far too big. My students are forced to fight on a six foot square leitai. There is no choice but standing and fighting, dodging, or circling. Even ten foot platforms would reduce "running" time.
3. More probability of injury from falling rather than fighting.

The concept of fighting of a raised platform to enhance the danger of the competition is passe in our modern liberal, litigious societies.