In the past i have purchased other makes of electronic grinders. Sadly the others looked great but the speed in which it took to get even the slightest amount of salt or pepper was ridiculous! However, thanks to another person who reviewed this product with a video, i saw for myself how much different this product was. Excellent grind speed and grind quality. Fine or coarse, these are the set to get. Unfortunately i have yet to find out their life cycle as i just received them. Time will tell...