Ahhh I tried bengkung for a few weeks after my second one and honestly it helped me feel less "loose" lah, tapi the real work is exercise and time, bengkung is more for support and making you feel better in your clothes, not magic hehe! A few of us tried different brands and most agree that comfort matters more than anything (you'll be wearing it all day), so find something that doesn't dig into your skin or make you sweat like crazy, especially in our heat. I haven't tried the KM one specifically, but check the reviews on Shopee or ask in your birth month group, mummies there usually tested everything already!