I'm on my second one now - I've practically been wearing it everyday for the last few years. Totally love it, you get so many comments from people - they love it too
I broke the screen on my first one. With my second one the little blue black light button has fallen out (i probably treat mine ruff as i wear it daily for doing all sorts of stuff), also the colours on my second one have faded (probably because i have worn it out alot in the sunlight)
ONE PRETTY ANNOYING NIGGLE that you should be prepared for, as its happen on both of my watches, after no too much wear:
The bottom strap clip doesn't clip down securely enough - by this I mean that the strap often pops open of its own accord, which can be very annoying (e.g. when cycling) as it required refastening