* Solar panel was dead, so we had to run the generator a lot more just so we could turn on the lights or the water pump for the bathroom, and that's time we have to pay for.
* Lighter outlet was busted, so no go on charging anything.
* We knew we could say good-bye to the $500 damage deposit for cleaning the thing, but there were, and I kid you not, an onion and a potato hidden in a kitchen compartment. We didn't find it until we were cleaning out the RV. We didn't buy an onion or a potato.
* Level lights were broken. Thirty minutes after getting grey/black water removed on the playa, they were showing 2/3rds full. We never had any idea how well we were stocked with water, or how much black or grey water was in the RV.
* Refrigerator was flat-out broken. It kept stuff cold maybe for two days and then it was warm. We had plenty of propane too.
My campmate called up corporate, and they were shocked by how much was wrong with the RV. They said the vehicle didn't represent their fleet, and that they would write up a report to send to the Los Angeles office so they could handle the case properly. However, when we returned the vehicle, they said they couldn't do anything for us, that we'd have to email customer relations. My campmate did that, but then got an automatic form email back that it'll take 30 days for a response.
Cruise America is a sucky company indeed. My rental from them a decade ago (my last and only) had a number of problems, ranging from the unit not even having a 12v jack (I had to install one) to the standard lack of ladder on cruise america units -- not to get to the roof but to hold bikes.
However, some of your issues are not odd in any RV. If an RV has a solar panel, it is almost always just there to stop the batteries from draining during long storage. It's a rare RV with a solar panel that would give you real power to do things like run lights and night or the furnace fan etc. Unless your RV had large panels on it and was advertised as being able to get a decent charge from them, it was normal. Most RVs use highly inefficient automotive interior lights instead of LEDs or fluorescents and they can't even run those that long on the battery. A decent sized single solar panel of about 40 watts would probably deliver about 200 watt-hours lying flat on your roof depending on dust, which is enough to run only a few of those bulbs. Most RV panels are in a much smaller range unless they are designed for recharge.
You were lucky to get a lighter outlet, some CA RVs do not have them.
Tank level lights: I have never seen any rv, from any company, where these were accurate. They get stuff on them quickly and always report something unrelated to what's in the tank. For black tank you have to open the toilet (turn water pump off) and look down with a flashlight. For gray tank you just have to wing it, or look at your fresh water level. That's the only one that usually remains accurate.
Dunno about your fridge but failure there is unusual and worthy of some refund.