I bought a Nexus Ghost 34DS in February of 2016. I got it because of the air ride and air brakes, plus the towing capability. Also I really like the Cummins Diesel mated with the Allison 3000 transmission.
The wiring is the same as the phantom- inverter next to water filter.
Aside from that, it is a nice coach. The durastar chassis is built like a tank and should hold up well. The coach portion is nice quality, and has lots of storage. The ghost needed an alignment and they said to take it to a shop and they would pay me back. I went to a nearby truck place and got it done. Nexus sent me a reimbursement check. The unit drives well and gets about 11 mpg when not towing.
I looked at the Jayco Seneca and Dynamax Force in comparison. I'm happy with my choice.