I was disappointed in this ability for two reasons:
1) I have been hoping for a targetted teleport in the game... an ability that would allow you to pick a target on a map, any target at all, another player, a landmark, a zone marker, and when you triggered the ability it would take you to your target. This is the dimension that I feel is missing from the teleport powerset. It would also be nice if Teleport Self would allow you to pick a target in your field of view such as an enemy or clickie, hit the power, and port directly to that target, rather than needing to pick a floor target.
2) As others have mentioned, the ability to teleport to another zone is diminished as an interesting ability owing to the enhanced ferry/train system throughout the game, as well as the SG and VG portals.