8cm Height Increase Insoles for Men (any good?

These height insoles can go up to 8cm tall or about 3 inches. Today I gave them a try to see if they were any good.
Personally, after walking in them for a couple of hours, I personally would go two levels which would give me about 2.5 inches of height instead of the 3 inches because I found that they were more stable and 3 inches were a little wobbly.
Having said that, they weren't the most comfortable and if I were to go with comfort, I believe, I would go with an elevator shoe instead.
Music credit :artlist