This Airstream has significant upgrades. In addition to the usual stuff you find in a 25 fbt, there are many upgrades that make this a perfect trailer for boondocking. The trailer has 400W of solar panels on the roof. Victron SmartSolar MPPT charge controller. 400 Amp Hours of Battle Born batteries. 3000W Victron Inverter/Converter. I’ve put temperature controlled fans in the inverter/converter area to help manage the heat when needed. Victron Cerbo GX and GX Touch 50 controller/monitor lets you know what is going on with all systems. The Victron systems can also be accessed via bluetooth and an app on your phone. Coach has been rewired so all 120v plugs work on the inverter. No more wondering if the plug you want to use is supported by the inverter. Soft start in the A/C unit. You can even run the A/C from the battery bank. Cell phone booster with an antenna on the roof that can be raised for use or lowered for towing at the touch of a button. I replaced the TV in the dining area with a larger and better one. Brand new mattresses. We also extended the bed platforms to reach the full width of the mattresses so they won’t breakdown when you sit on them (a common problem for the fbt models). Everything works and the trailer is ready to go. I replaced the tires (including the spare) last year so there is pleanty of life left on the rubber. It also comes with other goodies like an anti-sway hitch, top of the line hitch lock, and so forth.