Firstly, there are a few things I should point out. Reading the product description you see that this has a long battery life between charges, but please remember, this is based on one person only cleaning their teeth for two minutes twice a day. If there is going to be more than you using this, then please take that into account, and if like me it takes you longer than two minutes to clean your teeth, this will reduce this time as well. So saying, I should think that you are going to get well over a week without having to recharge this, which is better than what I currently get on my toothbrush, which is four days at best. In the box you get an owner's manual, and please read this as well; there are certain alterations you can make to customise this. I personally get fed up with the quad pacer sounding every thirty seconds, so I have turned that off, and if you are a bit wary of using this for the first time, you may want to initiate the easy start feature, which slowly ramps up the intensity over a period of days.
In the box you get the actual brush body, two toothbrush heads, a travelling charger, and a casing that you can put that into if you so desire, for home (this has bits on to hold more than one brush head, so ideal for a couple), instruction and guarantee books, and a nice hard plastic travelling case, that will hold the brush body, and two brush heads.
The brush heads are easy to click on and off, so there is no difficulty in changing them, and according to the manufacturers this will take any of the Philips click on heads, so if you are buying this as a replacement, the heads that you already own will fit (unless it is the Elite screw on type). This is rather intuitive to use, the front of the brush body has two buttons, one is the power, and the other lets you alter the program, and the speed of the brush head. You have three intensity levels for the brush head speed, these are normal clean mode, as well as white and gum care mode. Admittedly this is perhaps a bit OTT, after all you only want to clean your teeth. I should point out that when a program has finished, the brush automatically turns off, which is a bit of a nuisance, especially if like me it takes more than two minutes to clean my teeth in the basic clean operation. You have to turn the thing back on, which is really though only a minor thing. I did once read that the sonic power does diminish slightly after two minutes, so if you are still cleaning your teeth it may be advisable to quickly run the head under the tap before re-starting. I especially love the charge indicator, which has three lights and shows more clearly how much power is left in the device.
The last time I tried one of these brushes was when it first appeared on the market, and I have to say it has significantly improved since then. I found my teeth and gums to be clean and healthy after using this, and so it does work. I tried my own unofficial and non-scientific test which this passed better than my oscillating head toothbrush. This is simple if you want to replicate my experiment. Eat a bag of crisps and then clean your teeth. This removed any crisps stuck between my teeth, and the only visible indication of crisps was on one of the biting surfaces of one of my teeth, which is significantly better than with an oscillating head brush.
If you are looking for an electric toothbrush for yourself or the family then this could be the ideal one, similarly if you are thinking of changing to a different brush. However, to be perfectly candid with you, if you own an electric toothbrush and are happy with it, then stick with it, the important thing is to get your teeth clean, and to be happy with the brush you already use. I have had a quick scan through research papers and have concluded after reading numerous conflicting information that an oscillating type head is probably slightly better for removing plaque from the tooth surface that can be seen. A sonic type brush, such as this, is probably slightly better at removing unseen plaque and looking after the gums. There are only really small differences between these but it may be something to consider when purchasing a brush. I hope that this helps you on your choice of a good electric brush that will give you years of service. Remember that with something like this, you don't have to throw away the brush body when in a few years you need a new battery, you can purchase a new battery and fit it yourself, or maybe get someone you know to do it for you. It isn't hard, but it can be a bit fiddly.