Summary: After a lot of research including the reviews here, I decided this was the watch for me. I bought it in May 2013 to train for an October 2013 marathon. I cannot say it enough how PERFECT it worked. It is accurate, found satellites quickly (this may be a regional issue, my friend's in MN had significant issues throughout his training, I had none in CO). Controls were easy, and it was absolutely perfect for my training.
Summary: When this watch works, it's fantastic. But it crashes a lot and is flaky so I'm giving it 2 stars. I also have the men's, which fortunately isn't flaky but the wrist band is falling apart after only about 50 runs. It can be very inaccurate (almost useless) under heavy canopy especially if the leaves are wet. That's probably a fact of life with GPS and I can't imagine any other watch would be much better.
Summary: I just want to echo what so many people have said about this unit having trouble establishing a GPS connection. Whenver I use it in my neighborhood, it can take up to 20 or 30 minutes to connect (and I follow all the instructions about being outside, standing still, etc.) It seems to work better in other places. I contacted Garmin customer service, and they were nice and tried to be helpful, but they really seemed to have absolutely no idea why this would be happening.
Summary: It works well for running and biking (well enough for me). Acquires satellites quicker than the FR110 but sometimes wigs out and never acquires. But, after 41 days (18 runs) the overmolded elastic strap pulled off the plastic attachment. See my picture here: http://www.amazon.com/gp/customer-media/permalink/mo1VHDB2NG3FDU6/B0090C7A5M/ref=cm_ciu_images_pl_link Warranty support suggested sending the whole watch in for 3 weeks to be replaced with a recently repaired one...
Summary: The watch is very cute but disappointed in a few areas . I can not get the time to reset to daylight savings time (even when I go by the directions) and the battery did not last the distance of my half marathon 2 hrs 15 min..which is why I bought it in the first place.
Summary: Was absolutely brilliant when I first bought it. However after about 6 weeks or so the location finder got slower and slower to the point where I sent it back for a replacement. (Amazon were brilliant about it) So, had the new one and within weeks again I sometimes have run 3 miles before it works out where it is. Performance increases slightly when you download your runs but overall I'm a bit underwhelmed..