Your article fails to address quality and reliability. Although I love the concept and the features when it works properly, there are significant issues. I bought my UP before the competitive market drove the price down significantly. I'm on my 3rd band which I bought after the refurbished replacement failed just after the one year warranty expired. The original lasted about 8 months and the replacement about 6 months. I made sure I bought a warranty which guarantees repair or replacement for two years. When this one is through the warranty I'll be looking for both performance and durability.