Tom,
You will have a great time next year!!! We did the 2013 Spring Adventure and thoroughly enjoyed the trip!! We did it in one of GAH's 25' motorhomes. Perfect size and didn't have to mess with slides - turned out to be a great choice. The cab is the same in all the sizes, so you aren't gaining anthing there by going bigger. It's really just a place to sleep.
As to your question about things included in the RV - don't expect much to be included. Here is what we got: electric cord, sewer hose and connection, hose for filling water tank, toilet chemicals to last for the trip, tire & jack, broom, 4 plates, bowls & cups, 4 plastic glasses, silverware, a few cooking utensils, a large soup pot, a couple saucepans, one frying pan, colander, 1 trivet, coffee filters, 1 small wastebasket for the bathroom, and 1 roll of toilet paper. We also got 1 screwdriver and 1 pair of pliers. Of course, you should also expect to get the items you specifically added to the rental, i.e. coffee maker, towels, lawn chairs, sheets, etc.
BTW - in case you are expecting everything to be new in the "New" motorhome - don't. Everything we got in the motorhome was well used and mismatched, which was a surprise to us. They take everything out of the motorhomes they sold the previous year and ship it to Iowa and put them in the "New" motorhomes.
We did not have any problems with the motorhome that caused us to lose time. We had a heater that worked off and on for the first 4 or 5 nights, then never had another problem with it - go figure. We also had a tank monitor(batteries, propane, fresh water, black water & grey water) that didn't work, so you never knew what your levels were. We considered both items to be minor. We did not talk with any other GAHer's that had engine or transmission problems this trip (2013). When you get your contract next January or so, and you read the fine print, you will see that you are pretty much on your own if you do have problems. GAH isn't going to send help. They will advise you by phone what they want you to do, but you may lose days of travel if it's serious and there is no compensation for that, either $$ or extra days at the end. We took the tools we carry in our own RV so we could fix things, but thankfully did not need them. Surprisingly, or maybe not, GAH did not address this topic in the orientation they require you to sit through the morning of your departure from Forest City.
As next May gets closer you will have more questions and this list is a good source of answers, but, as with any list we all have opinions. You will have to make the choices that are right for you.
Sorry to be so lengthy.
Cindy
Chattanooga, Tn.