I just used it in a tournament counterpick stage today against a Marth. I pretty much camped the right* side of the stage and d-tilt comboed him to death (dsmash) on 2 stocks.
As long as you have more stocks or less damage then the opponent, they HAVE to go to that side of the stage. Easy ways to get into the combo is with a grab, cargo down throw against the wall. The main problem for this is just getting in the grab.
Keep in mind that you can still kill the opponent rather quickly on the right side on your own without the infinite. Also, this stage prevents DK from being completely spammed (his main flaw).
As long as you have more stocks or less damage then the opponent, they HAVE to go to that side of the stage. Easy ways to get into the combo is with a grab, cargo down throw against the wall. The main problem for this is just getting in the grab.
Keep in mind that you can still kill the opponent rather quickly on the right side on your own without the infinite. Also, this stage prevents DK from being completely spammed (his main flaw).