The One Blade is the most irritation free razor that I've ever used. I find the shave a little milder than the Mongoose. The pivoting head isn't an issue, and most people seem to enjoy it once they've used it for awhile. It's a very well made and well thought out razor. The only issue for some people is that there isn't a blade choice, as only the Feather spineless blades will fit, although some people are taking the spine off GEMs and are getting many more shaves per blade. I happen to like the Feather blade, and just change the blade after three shaves. The One Blade is a better fit for my beard and skin type than the Mongoose, although I don't find one better than the other, just different. However, I only use an SE or DE when I'm rushed and don't have time to use a straight, or when traveling.