Review (5/5): Must have! It really really really really works!
I've had mine for several years now and I could not be more pleased. I'm not going to go into details about all the things everyone else has already said, but I do have a fantastic tip to share.
Lay down on the bed while brushing! Brushing at the sink for 2 or 3 minutes seems like an eternity (especially if you are one of those people who often gets the toothpaste drooling down your chin). Laying down while brushing is one of the best ideas I have ever had. Try this for at least a week and you will be hooked! Relax. Let the toothbrush do the work while you lay down and relax. Enjoy the feeling of the toothbrush massaging your gums and cleaning your teeth. Take your time, and RELAX! (I know, I keep saying relax over and over, but seriously, try taking a little meditation and relaxation break). This makes a mundane chore actually quite enjoyable. If you do this, you will find that you brush longer, and you AND your dentist will notice the results. WARNING! Wait until you get back to the sink to brush your tongue so you don't gag or choke.
By the way, I also have a Sonicare and use it on a regular basis but I prefer this one because it's more controllable.