Gidday Edspag,
I have one similar to RWS - mine is the cheap version from 'some-what-cheap auto' - about 1/2 the price and 1/10 the quality. Although it works well, I think the one RWS has would work better - mine is heavier, doesn't fold down as flat and doesn't have as smooth bits on the bottom - where the legs rest on the canvas on the ground, and doesn't always lock properly into the open position - its quite a drama when I find that out during the night! I use it inside for access to and from the bed, and outside for zipping on the awning etc and it is ideal for height, although I do intend on upgrading to the one RWS has for the above mentioned reasons. I have seen that one for $60.00.
Cheers,