I've been using the Node 1 for about 3 months now. I got both the speed and cadence sensor. Haven't had any issues and I really like the large display it has. All the information is easily accessable (dont have to scroll through lots of functions to find the one you want). Only problem ive had so far is that the sensors require batteries, and i've gone through two new ones already on both my cadence and speed sensor, once they start to go you get very eradic data.