I've been a huge Garmin supporter for years. Had a 200 for a while and upgraded to a 510. I generally can't imagine riding without one. The other day, my 510 suddenly decided it didn't want to load my bike profiles, and I ended up having to do a master reset. Only lost a couple of commuter rides, but still. This is maybe the 3rd or 4th time this has happened to me in 3 or 4 years, but it really, really sucks when you have to redo your bike profiles and eveyrthing. Between that and the awful, awful, AWFUL bluetooth pairing with recent firmware updates, I am THIS close to saying **** it and throwing it on ebay. They make incredible hardware that is awesome when it works, but gives me more issues with every single firmware update than any iPhone ever has.