No problem with the installation by following the procedure.
Easy to use with 4 buttons always have the same functions regardless of the menu and a button to activate the logbook.
The display on the screen allows you to view 6 functions of a glance, I use the heart rate, cadence, altitude and slope with the speed and mileage that can replace the average speed, duration ... by simply pressing a key and everything is configurable by the user.
Software installation and meter connection posed no difficulty.
The software allows you to store all the elements of each of the outlets and make a detailed analysis thanks to the logbook.
New features watt and development allow us to see or is the form of state.