Frustration is a better term I use. Experience of owning a previous Airstream, with a personal pre-purchase shake down, discovers these kinds of issues.
My first Airstream was the 2006 23 foot Safari. I was not mad... I was SICK to my stomach when we ended up with a list of problems. Although after taking it to Jackson Center... it was a wonderful, dependable trailer. Hopefully you have the new 15 inch Goodyear tires.
Our Dealer was indifferent... 'will fit you in... someday when the Moon and Jupiter align' type of attitude.
You now own this trailer. The Dealer is giving you the attention immediately.
Get a note pad. Check everything. EVERYTHING to know it is operational. Fill the Fresh Water Tank. Add Water to the Black and Grey. Connect to 30 amp power and check the Air Conditioner.
Once cool... fire up the furnace if possible.
Dometic refrigerator fan... does it work? Is it noisy? If it vents through the roof...not an issue.
Outside shower head and hose work under pressure?
Is your water pump... NOISY? Maybe they can tame the 'BEAST'. You will know noisy from quiet.
Does the Radio, Television work? Faucets. Have water under pressure. Any Leaks. Have the hot water tank on electric. Then to Propane. Refrigerator on electric, and then on propane. Are Propane tanks FULL? (They should be full.)
Does your awning pull out, retract and secure as it should.
Windows, open and close. Shades roll up properly. Fan(s) on ceiling operational?
Open and close all drawers and cabinet doors. Plastic locking mechanisms will click shut. Any hinges loose? Wiggle them. Either snug... or they have play.
Batteries need to be checked. Often they come DEAD from sitting and not charged. Check the voltage of the BATTERIES without being plugged in. Do they discharge fast, or keep a charge? This is a frequent problem on trailers that have been around since early 2019. You may be fine... but check them anyways.
Do you have a spare tire? Check the air pressure in your tires. Have the dealer check the wheel torque. Get a ladder to look at the top. Any wires or covers look not attached?
This is a House on Wheels. The final inspection by someone who has owned an Airstream or two learned this the... same way you are learning. By discovering any small problems on this trip to the Dealer... have them properly walk you through the entire trailer, showing HOW to operate everything. Don't be in a hurry this time to get home. If you are not satisfied, ask to camp out in their lot.
The buyer should not be responsible to check and verify... but you have to. The dealer may have fifty trailers on the lot and they cannot catch everything.
Arid and Hot climates will create shrinkage on inside panels. I see that in new trailers sitting on the lot. Sometimes by having a five gallon bucket of water sitting in the shower will add humidity in an arid hot trailer. That might help prevent cracking of a panel. Not only walls... but the overhead cabinet interiors. Especially the bottom surface panel and sides.
The 23 foot is a go anywhere Airstream. Have it set up as if you are going to keep it forever. Eventually you will be getting a 25 foot Airstream and will know HOW to check the entire trailer out and before you buy... have it fixed.
Our current 2019 27 foot International had a final walk through before we signed the check. When we did the through check list, like above and others, we are 100% satisfied. Airstream of Las Vegas... a hearty Thank You. Job well done.
Your Dealer seems to be responding to your issues. Check it out now. Not after you return home. After a few uneventful trips... you will be grinning. Your reward for hanging in there. We did after our first Airstream, a 23 foot. Kept it for 8 years. Learned a lot. You will as well.