I had a couple of other brands before this one and they weren't so good.  This one, however, is perfect for quick and perfectly boiled eggs.  It can do a couple of other tricks (poached egg, fried), but I didn't get it for anything other than boiled eggs.  You can do up to seven eggs, and the piercer that comes with the cooker indicates the correct water level for however many eggs you are doing.  They come out perfect every time, which is what I love about this cooker.  There is no auto-off function, and when the water has boiled away the eggs are ready and buzzer comes on.  An auto-off is relatively useless because when done, you want to immediately immerse the eggs into a bowl of cold water to stop the cooking.  Overcooked eggs are rubbery, can turn dark inside, and aren't good, so an auto-off would not be such a great thing.  The only issue I've had is when I forgot to pierce the bottom of one of the eggs..it cracked and egg oozed out.  But if you follow directions and properly pierce each egg, you'll have perfectly boiled eggs in about 15 minutes every time.  Easy clean-up, and I've had mine for at least 5 or 6 years now, still works like new.  BTW, when you can so effortlessly get boiled eggs with a little tool like this, why mess with a pan of boiling water, often-broken shells, and eggs either under or overcooked?  I never did many boiled eggs before I had the cooker, but after getting it I started cooking them a lot. The Krups cooker makes it so easy, and it's fantastic if you are on a diet that uses a lot of boiled eggs (Atkins!).  Easy-pleasy no brainer, good quality cooker and in my experience, very long lasting.  Side note:  appears to be the only one with a flat top, which is GREAT for storage.  No need to make a cooker look like an egg!
I had a couple of other brands before this one and they weren't so good. This one, however, is perfect for quick and perfectly boiled eggs. It can do a couple of other tricks (poached egg, fried), but I didn't get it for anything other than boiled eggs. You can do up to seven eggs, and the piercer that comes with the cooker indicates the correct water level for however many eggs you are doing. They come out perfect every time, which is what I love about this cooker. There is no auto-off function, and when the water has boiled away the eggs are ready and buzzer comes on. An auto-off is relatively useless because when done, you want to immediately immerse the eggs into a bowl of cold water to stop the cooking. Overcooked eggs are rubbery, can turn dark inside, and aren't good, so an auto-off would not be such a great thing. The only issue I've had is when I forgot to pierce the bottom of one of the eggs.. it cracked and egg oozed out. But if you follow directions and properly pierce each egg, you'll have perfectly boiled eggs in about 15 minutes every time. Easy clean-up, and I've had mine for at least 5 or 6 years now, still works like new. BTW, when you can so effortlessly get boiled eggs with a little tool like this, why mess with a pan of boiling water, often-broken shells, and eggs either under or overcooked? I never did many boiled eggs before I had the cooker, but after getting it I started cooking them a lot. The Krups cooker makes it so easy, and it's fantastic if you are on a diet that uses a lot of boiled eggs (Atkins! ). Easy-pleasy no brainer, good quality cooker and in my experience, very long lasting. Side note:  appears to be the only one with a flat top, which is GREAT for storage. No need to make a cooker look like an egg!