The more I look at the Cruise RV website, the less I am liking the RV. The weight is very light, I guess that is good. I just hope that the frame is strong enough.
The furnace size is marginal. I have a 30,000 Btu furnace on my 30' Bounder, and while it does not need to run a long time each time it is on, the 20,000 Btu in this trailer will spend more time running than a 30,000 Btu one would. This is important for two reasons. It is noisy, making watching a DVD more difficult while the furnace runs. The 2 solutions is turn down the thermostat until the movie is over, or take a break while it is on, or turn it up really lound. The second reason is battery power. If my furnace needs to run 10 minutes every hour, yours would need to run 15 minutes due to it being 2/3 the size, and my RV also being about 30' long. The fan draws about 6 amps per hour, so I can run mine 6 hours for the same energy that yours will use up in 4 hours. Mine might run 10 minuets per hour and take 6 hours to use up 6 amp hours of power. Yours would run 15 minutes per hour, and use the same energy in 4 hours time (60 minutes run time, say from 9 pm to 1 am).
My next question is how large is the converter/charger? IF less than 45 amps, you will spend a long time running the generator to refill the battery. It is also more likely to overload or overheat a 30 amp converter than a 55 or 60 amp converter. Even though you "Can" get by with a 20 amp converter, charging from a generator would take a really long time. Fine if you plan on spending time in a lot of campgrounds (like some RV'ers do). Yet many who buy a toyhauler also want a RV capable of camping out in the desert, without hookups, perhaps only the battery to rely on,or a generator. So charging quickly is important.
So if they cut corners on things you do not see, such as the furnace capacity (causing it to run more minutes per hour than a larger unit would take to get the same job done) or more important (to me at least) converter capacity, I would stay away.
Fred.