PROS -- it's lightweight and portable and storable. It's sturdy when it's open and easy to use if you are just trying to reach up a bit higher for something. CONS -- it does slide on linoleum, though not with adult weight on it. I bought it thinking it would be a spacesaving, inexpensive option for my child to reach the sink and counters since it's a little higher than those two-step kids' stepstools, but a young child on it, pushing against a counter trying to reach forward, can slide it backwards. Plus, because of the slant in the back, the step is a few inches away from the counter/cabinets and leveraging little toes against it while reaching forward makes it even more likely to slide on a linoleum floor. So if you are also thinking of putting a kid on it instead of a space-hogging heavy block-type stepstool, keep looking.
The top step is sturdy and textured so that you won't slip on it, but it's not a very wide step, so it's only great for reaching for things. I wouldn't stand on it for doing things like painting or installing something.