OVERALL: Fits perfectly into the palm of your hand. Cuts almost effortlessly. Disassemblies and cleans easily!
> The sharp blade will cut anything up to 1 1/2" thick, including pizza, dough, brownies, muffins, pita bread, thin sandwiches, etc.
> Since there is no handle, you've got much better leverage, particularly if you are standing and the pizza is on a normal-height table. I'm not sure I'd say that it is easy for the elderly with weak wrists (it can still take some force to break a crisp crust), but it is certainly far easier than standard pizza cutters, particularly if you keep it sharp. Folks with weak wrists could use both hands.
> To keep it sharp, it is best to cut your pizza (etc.) on a wooden or plastic cutting board---not on a metal pan. If you buy frozen pizza, then save the round cardboard beneath the pizza to cut it on.
HOW TO OPEN
With the "Zyliss" nameplate facing you (as in the photo above), grasp the tab on the right side with the thumb and forefinger of your right hand. Push up with your thumb, push down with your forefinger. (It's a twisting motion). The shell will pop open. Continue in the same direction (counterclockwise) to rotate the shell open. DO NOT try to pull the shell apart, it ROTATES opens on a short "axle" (on the left side, opposite the tab) like the hands on a clock.
HOW TO ASSEMBLE
With the shell fully open, grasp the blade and slide it into the slot in the bottom side of the shell (the side WITHOUT the Zyliss nameplate). Then rotate the shell closed.
To protect the blade from dings and your fingers from danger, it is best to hang the Pizza Wheel on a plastic hook by the 3/8" hole in the blade. Unfortunately the blade is non-magnetic, and so will not stick to a magnetic knife rack. If you store the Pizza Wheel in a kitchen-tool-drawer, then I suggest using the temporary flimsy plastic blade cover which is part of the packaging.
Disassemble, and hand wash/wash in your dishwasher. It is best to hang the blade in a hook or place it in a plastic basket to protect both your dishwasher rack and the cutting edge. According to other website reviewers - dishwasher washing weakens the plastic shell so that it breaks after a year or two. I've used mine at least once-a-week for about two year, with no problems --- I always hand wash it. I also suspect that it is primarily the drying cycle of dishwashers which actually damages plastic---indeed some dishwashers don't have drying cycles. Actually metal and ceramic dishes will usually dry fine without a drying cycle---it just takes a few more hours, and saves a lot of electricity. So, you might consider turning the drying cycle off, if you have that option.
The Pizza Wheel is large---about 5 1/2" across. If you are not good at visualizing how big that is, I suggest check out the size with a ruler. Don't buy it to save space, it won't
The smooth plastic surface can be slippery, and might be a problem in children's hands. A pebbly surface, or raised lines would be easier to grip with wet or greasy fingers, but would be less attractive and not as easy to clean. The Zyliss Pizza Wheel is as safe or safer than any other pizza cutter---but ANY tool with a blade is potentially unsafe in the wrong hands. Note also that tools with dull blades are actually more dangerous than tools with sharp blades (because the extra strength required reduces control)---treat it like a fine chef's knife---keep it sharp---keep it away from children. I can't believe it, but lawnmowers are now intentionally being sold with dull blades as a "safety" feature.
I have bought numerous types of ice cream scoops, only to find that most of them are sucky. I've had my Zyliss for about two years, and it's still the best one I've ever found. And even though it doesn't look like it would, it scoops the most beautiful round scoops. I always hand-wash mine.
This spinner is fine; it works well on lettuce and fine on salad mixes. The top is flat, which is helpful for creating more space in the fridge. I wish Zyliss had kept the previous mulit-directional spinners... it was a better design. So was the lid that snapped on; this lid is rather a loose fit. This was the best of the current choices on the market, but I'd have preferred the older Zyliss model if they still made it.