First of all, what do majeggings look like? Majeggings look like skinny jeans, although it must be said, my majeggings were unusually long and, unlike leggings normale, are rather loose at the ankles. They're not too different in appearance from APC jeans, my usual pant of choice. Up close of course, the majegging reveals its true nature. These are sweatpants by another name.
Second of all, how do majeggings feel? Majeggings feel great. I love them. I love wearing them. It's like not wearing pants. I hate pants. Majeggings are very thin. In addition, I also have very large thighs so skinny jeans have always been hell on my quads. The price to pay for style was cramping. Majeggings did not cramp my thigh style. Rather, I felt agile in them, like a cat wearing tights on a hot tin roof.
Also, I'm constantly thinking of self-defense. I have no idea why. I've never been mugged. But whenever I wear skinny jeans, I think how compromised I'd be if I got into a fight because mobility is so restricted. Majeggings. I think, are the perfect pants to wear while being mugged or otherwise entering into a physical confrontation. Front kicks, fan kicks, roundhouses (not to mention just running away as fast as you can) are all easy to execute in them.