I bought the suunto X6hrt after having 2 polars and getting sick of their fragility during training. The suunto site isn't that clear about the product but I bought it expecting at least the same level of functions that I got in simpler polar watches. In this model, compass, barometer, altimeter look goods, but the HR function only measures the current HR, nothing else. What about % of max HR (very easy to implement) and calories expendure?
For a USD 1,000 watch, it really doesn't pay off if you need some HR basic functions. 3 stars

The performance and usability of this watch simply do not justify its price tag.

1. The HRM function isn't reliable. My $30 unbranded HRM maintains a better wireless connection to the chest strap. Occasionally the X6HR measures false heart rate spikes up to 190. Occasional drop outs or false spikes are not a problem for a simple HRM, but a real pain when you're using the X6HR to record over time, as it screws up heart rate statistics.

2. The buttons are too 'mushy'. It's hard to tell when a button has been properly pressed.

3. The software the comes with the watch is clunky and ugly.

Overall, if you are looking at the X6HR, look at the Polar AXN500. 2 stars

The first X6HRM I purchased was very flaky, with the screen blanking out after a button was pushed. I was about to return it, but found out there was a recall. The new unit functions flawlessly and is great if you have regular workouts you do. With altimeter, HRM and timer saving data you can download workout profiles to your PC (average software but functional) and overlay curves to check progress during the season or year-to-year.
The only minor complaint is that the unit sucks down batteries. They're easy to replace though, so buy a few spares. 5 stars

Piss me off. damn thing didn't ship w/ a USB connector like it says it does & cant use the damn thing, after paying over $500 for it. Since I am in Iraq, I cannot send it back. GREAT. RIPOFFS!!!! 1 star

Description appears to be Suunto X6HRM (M is for Metal), but the item shipped is in fact Suunto X6HR. I sent it back asking for the good item (which cost me 80, more than 100$) and I had a refund.

Thanks a lot it cost me a lot for ... nothing.

I will surely order again. 1 star