I got a 210 earlier this year, works well and no problems uploading data etc. I’m reasonably happy with it, it’s more or less done what I asked of it, and has undoubtedly helped with my marathon training.
That said, I’m not sure I’d get another one: if I’d had the cash at the time I bought it I’d probably have gone for a 610 or 910, and that opinion hasn’t changed… Downsides:
* you can’t upload workouts from the web to the watch. Not a problem for long stead pace runs, but a pain if you’re following a plan that calls for more complex workouts (for example 2km at 5min/km, then 6km at … etc.)
* not fully waterproof (fine for rain and showers, but you can’t go swimming with it on). This hasn’t really been a problem, but may be in summer
* uploading data means connecting via USB, this also means you’re charging the battery. Not sure what effect this will have longterm on the battery. (The more expensive models use a wireless connection to upload data).