A few things I forgot to mention... A Splendide RV washer/dryer combo will wash 15 lb. of clothes but dry only 11 lb. The stackable will also wash 15 lb. but the dryer can handle 13 lb. Either can handle a set of queen sized bedding and may be able to handle a light to medium weight blanket (depending on the blanket; the blanket would have to be washed separately). Anything heavier will have to be done in a laundromat. One could avoid that by using layers of lighter blankets instead of one heavy one. If one is willing to give up having a quilted bedspread, one might be able to wash a light weight bedspread.
Although they take up more space and weigh more, stackables have the advantage of being able to wash a load while another load is drying. With a combo, one has to weight for the wash/dry cycle to complete before starting another load. With stackables, the more consecutive loads one does, the more time one saves over using a combo. Also, stackable do not have to be stacked. They can be installed side by side (or in separate locations) and even elevated to spare one's back (the combo can also be elevated). It all depends on how much room one has and where the space is located.
One has to change the way clothes are washed and dryed when using RV washers and dryers because of the limited capacity. Figure on having to run a load pretty much every day instead of letting them pile up and doing them all at once on the weekend. While, in theory, one can let a combo wash and dry without any intervention, it is better to pull the clothes out of the machine after the spin cycle, fold them, then put them back in to the dryer to avoid wrinkles. I pretty much do that at home anyway when I move clothes from my washer to my dryer. I shake the wrinkles and tangles out and kinda sorta fold the large items as I toss them in the dryer.
Personally, I couldn't care less about wrinkles in my undies or sheets (or even my jeans) since they will be stretched out when in use and besides, who the heck is going to see them? The advantage of not having sit in a laundromat while doing laundry more than trumps the disadvantages of the smaller, slower machines. Also, my machines stay clean which is more than I can say for most laundromats I've been in.