Now I've had this watch a few days, I can't help thinking that rather than being called the MARQ Athlete, Garmin should have called it the MARQ Runner as it's clear that that's where the bias lies in the features that differentiate this watch from the other MARQs - running VO2Max indicator and Total Run on watch face, and the one-touch fitness metrics (hold top right button) gives predictions for marathon, half, 10k and 5k. That's not to say that if you're primarily a runner/swimmer/other you're missing out on something you'd get on the other MARQs, but it's also true that unless you're a runner, the Athelete doesn't give you anything of any use that the others don't.
Still think it's a great watch and has lived up to all my expectations (so far!) but I hope Garmin will consider refocussing a bit on the other core activities in future firmware updates to better align its functionality to its name.