JOperation balance and Withings blood pressure monitor since November 2011 without any problems (nowadays it's rare) the products are RELIABLE, ERGONOMIC and extra French design (but made in China!), So I do not hesitate to acquire the Pulse Whithings that I use every day for over a week without any problems. It is a little less playful than are direct competitor, but significantly more powerful! I definitely recommend this product for young and old. ;-)