Just got my Vantage M and I love it. The hardware design is really good, looks great and is very comfortable on the wrist. OHR is reliable and provides very stable HR values. I'm a cyclist and just starting to prepare for the season so I do a wide range of activities - hiking, weightlifting, running, strength training etc. This is my new all in one exercise machine. The GPS performance is also excellent. I travel a lot and the battery life has been great. I've been doing this for 3 days, including 6 hours of training and still >50% battery. Also, it's LIGHT! Definitely recommend it.