It can be pretty decent for in-and-out mobility in the current live version if you choose to use it that way. I’ll use that often to charge up on a barrier, get to the enemy backline, kill something, and go back through before the portal dies.
With the huge cooldown nerf on PTR, I’m not sure it will be very useful for mobility at all anymore, but… hopefully something changes with that. I actually have no idea what they’re even trying to accomplish with that change.