Good. I don't PvP so I haven't seen any downsides to using it thus far. I thought that the base/transport thing was the single coolest improvement to the game since re-launch. I could even use it on un-guilded alts as long as I had a legit base code.
This made me sad -- the Hive and the RWZ had pretty much become social areas more than anything else. This pretty much killed that based on the fractured/instanced turnout of last night. I actually thought the zone cap change of May was an improvement and find this "fix" to be very disappointing.