Guild Wars 2

Can I teleport to it from anywhere? also does it have asura gates/teleports to other places? basically Is it sort of a hub?

Yes, you can teleport to it by double-clicking your pass in any PvE map (can’t do it from WvW, or in dungeons, or anything like that).

It does have a helmsman which will teleport you to any of the major city asuran gates.

The key is that it has all the crafting stations and other useful NPCs (bank, TP, etc) all in a very small area. Pure convenience item.