Purchased this because we make 150 to 200+ burgers every Sunday for a weekly summer event. This does work as advertised and is a great time saver. The unit comes with different sized components that let you make 3 difference sizes of burgers. You have minor but intuitive assembly to do, disassembly for cleaning is quick. I use the largest size, making approximately a 1lb burger which the unit handles nicely as a 6\" patty. Quick tutorial. Assemble the size you want, the components dictate the patty size (3 sets come with this unit - not all units have this feature). Press the button on the side and the base plate drops inside the cup that forms the burger. Place a parchment circle inside the cup, put in your burger, place a parchment on top. Pull the lever until you hear a click, release the lever and the base raised up with your ready to use patty. The only negative is the parchment circles. The ones they provide are excellent, but I cannot find them on Amazon and the company has not responded as to where I can find them. I have found some of the parchment circles on Amazon, but they tend to vary in size and are either too small or too big. They still work however.
Ingrid Stockwell 
