Once upon a time I had a fascination with slide out, swing out, and tip out kitchens. The kind that could be used either indoors or out. The problems with all of the ones I had, which were made by others, was that they were very inconvenient to use from the inside. To be low enough for outside use, they were too low to use inside without being on your knees.
Eventually I came to the conclusion that portable camp stoves and portable dish pans for sinks, that could be taken out and used on a portable table or picnic table seemed to work better for me at least, because I could decide what height I wanted them at both inside and outside.
I love the inventiveness of this stuff, and if it works as good in practice as it is neat, that's way cool.