A ship is no longer required to go to allods, so most people don't bother.
The teleport is "fun" but not really functional in my opinion. But I have a permanent Goblin Banker so...
Mount sharing is easily the "best" feature of it, but was limited to rank 4 or below mounts. If that hasn't changed, it's garbage since it's easy enough to buy an as good, or better mount now. Example being the chimney mount from the Winter Atoll.
I guess I should say it isn't worth buying unless you know someone who can make it worth the time. In my opinion it isn't worth finding someone just to borrow a slow ass rank 4 mount. Also, the cost was based on level, so if you have a low level reincarnation you could save a bunch of gold.