u know that in life you don't have to experience shitty things to know it is shitty. Just spend some time reading the review section will give you an idea what the product is like.
If i need to keep pressing the button to make it work, to me it is crap. If i need to keep pressing the rice cooker button to cook rice, then it's badd design.
Normal vacuum that i use so far just press on once. Not keep pressing. Maybe u have been buying things that need to be pressed continuously to work and don't know that the market has better options to press once.