The main reason I bought this was to track how well I was sleeping, second for weight loss assistance. I am a Weight Watchers member, I did not buy this to replace my membership. I bought a package from Bodymedia directly, it contained a separate display device called GoWear. I was hesitant to put out a large amount of money up front, especially with a subscription to the web site. But I have learned so much, I'm glad I bought a one year subscription, it is cheaper on a per month breakdown of the cost. I have not had a problem with software or hardware from this company.
Some basic info: The Dashboard gives you a basic review of your progress using a bar graph. There are shaded areas that guide you to the goals the program has set for you based on your personal information. It asks you to report a daily weight reading and reflects losses with this info. The medium size armband that came with it was too snug (I'm a size 18 to 20), I had already bought a large size with the package. The large arm band kept sliding down for 2 days until I found the right spot and adjustment that worked. I do not wave my arms around for aerobic exercise. GoWear display is not updated second by second with the armband. Nutrition information is only as accurate as you log it. With nutrition logging, you can enter a recipe, create a food that is displayed under My Foods. It keeps a list of frequent foods you have logged. GoWear display is a separate purchase from the armband.
PROS: Armband can be programed to beep the GoWear display with preset options such as time to drink, exercise, etc. Tracks 'personal bests', which is motivational. Can track waist circumference measurement (optional). Assembled in Canada, not China. Armband is latex free. Easy to remove food from the nutrition log. Replacement parts available. Decorative skin decals available for the armband monitor. Drop down displays on the Dashboard give detailed info on information that has been logged (steps, sleep graphs etc, by clicking the arrow on the left side of the graph next to what you want to look up) this keeps a simple to read reference. Armband monitor beeps the GoWear display when targets for the day have been met. Watchband for the GoWear display will not easily come apart when fastened, no excess length to hang off the end either. GoWear display is interchangeable with a clip to wear on your waist or pocket. GoWear display is scratch resistant. Nutrition log on the Dashboard under Calories Consumed gives a thorough list of nutrients you consumed along with a pie chart of the balance of carbs, protein, fat and alcohol. Armband beeps when it has lost contact or finds contact with your skin, otherwise it is silent. You can buy armbands with different colored plastic frames. The armband module can only fit into the plastic frame one way. At the end of the day, the program will tell you on the Dashboard if you are on a weight loss trend. I find this to be the most valuable aspect to let me know I am doing things right, especially when the numbers on the scale are not budging downward.
CONS: It is not water proof, it can not be worn for water sports. Armband can have a hard time reading you if your skin is cold. You need to have basic knowledge of healthy eating habits. I could not find detailed instructions on using the program, I learned as I went along. If you have the GoWear display, you must make sure it's firmly seated on the clip or wrist band by turning it until you feel it click together. Arthritic fingers may have a hard time doing this, along with fastening the wristband together. Printing on the GoWear display along the outside edge is tiny: Calories, Steps, Activity, etc. Displayed reading of actual steps, calories, time is easy to read. It counted steps while I was asleep, and I don't sleep walk (it tracked 4-6 steps). Clip for the GoWear display does not open very far to slide onto clothes. Steps measured by the armband did vary from the GoWear display, but not by much. GoWear will get out of sync with the armband, it will tell you to sync it. You have to press the button on the armband to do this. Sometimes I have to bend my arm to get the two within close proximity to achieve this. So, it can be awkward to press the armband without losing skin contact. I've noticed wearing thick clothing can lead to the two getting out of sync. The manufacturer suggests you clean the band by hand, not a washing machine. The armband module was a little difficult at first to pop out for cable syncing, but it became easier the more I did that. It's possible to put the armband on upside down, and it won't work that way.
I have had no problem using Windows 7 with this. I like Linux, and was able to log nutrition info with SAMity Linux. I did not upload with the USB cable via Linux and I would not recommend a purchase of this magnitude if you only run on Linux. Bodymedia sent me to a window listing compatible operating systems while trying to log food, I clicked on the Continue button at the bottom and was able to complete the task.
Sorry for the long entry, but with the amount of money one may want to sink into this system, the more information, the better decision one can make.