The gillette razors gave me crazy razor burn. I've used Harry's for about a year now and have not had any razor burn. I use their cream too, which works well enough for me. The other nice thing is the gillette blades lasted me 3 shaves at most. Harry's I've got as many as 20 shaves out of before switching.

I didn't change anything else about my shaving habits besides the blades and cream.

Oh, and my wife used my razor once, fell in love and that's all she uses (her own blade and handle).