had been using an Edge 520 for the last seven years.Could barely get 3 rides beforw the battery needed to be recharged but no real complaints. Bought the 540 two weeks ago and all I can say is WOW! Battery life is out of this world with four paired sensors. Love Climb Pro. Haven't figured out all the features yet but what an upgrade.
I bought this to replace a Garmin 200 or something that I had years ago that got stolen with a bike. Couldn’t be happier, good price point and it does all sorts of cool stuff color routing and the battery last forever! Pumped!
I have only had this for a dozen rides. I like the page that shows all of the stats while you ride. The riding I do is all rail trail, so the slope incline does not show accurately. Sometimes I think it is the tree cover and poor satellite pick up. I like the connection to my phone because it helps me decide if I need to answer or not. I like the side buttons because I can scroll through the different screens better than a touch screen.