if you seek a entrainment assistant during your leisure or sports out there is perfect. Has almost all the possible function to evolve in the difficulty of your workout. If you have 2 bikes must think to buy extra support to be able to fix it. If the display is easy to read thanks to the relatively large screen it would have been more if we could decide which information to display priority. The only worry meet (he must have one) is at levels of cardio-frequency meter. During the first use must think has moisten the contact area with water (and nothing else) to sync well with the sensor. And wizard sigma data center allows to compare and even adjust before first use if you not want to use his button first. The only problem is Windows 8 there is a little manipulation to install wizard but everything is explained here [...]) otherwise it's as good with that and I am there still function I must learn to use. On those road is good to all.