We've been out for 3 weeks now in our 303. All I can say is WOW! The trailer has been great. About the only complaint is the fridge frosted up pretty good after 2 weeks.
I turned it down and the frost fell off easily into the drip tray below. The dogs are happy and have claimed their floor space and the bed if we let them get away with it.
The 4" memory foam we put in works, bed is still comfy.

We had installed 2
industrial 6v batteries. Did 5 nights of dry camping on the Blue Ridge Parkway and went from 12.8 down to 11.75 by the last night. Ran the furnace in the mornings and at night
before bed and all night one night. And lights of course. Didn't need to hook up to the generator to recharge! Looks like dry camping is a non issue now. We kept the battery the trailer came with as a back up just in case.SO in all we decided to keep the 303 and keep on campin!