Echoed. Bought a Fitbit Charge a few years ago, band started separating, I tweeted them and got a response within 20 minutes, and a new Fitbit Charge about 8 days later. I've since upgraded to the Charge HR.

Agreed. I had a brief (~10m) online chat and then received a new Charge HR a couple days later for one with a broken power connector.

Same here. Customer service was great at replacing my fitbit four times. Needless to say, I don't use fitbits anymore.

I lost my cheapo fitbit at the car dealership (it clipped onto the seatbelt of a certain car I test drove), and Fitbit sent it back after it was found.