but it's a total nightmare to get adequate support.

It's good supporting my HTC m9 , but the battery back is too short

Samsung has no other support for it, so in otherwords a waste of 300dollars.

Support is horrible.---Update 3:

I have now decided that since Samsung has such an unreliable and irresponsible support system then I cannot trust them with my regular credit card information and will instead purchase a gift card to add to my Samsung account so that my exposure to their incompetence is limited.

Great device, the platform just is lacking app support.

Support is not very supportive.---Update 2:

You could end up with an unusable device and Samsung support will not assist with the unlock.

As it is, Samsung support for simple matters like pairing the watch with my phone and changing the password of my Samsung account were rendered almost impossible due to sloppy web programming interfaces, poor customer support and general lack of technical trustworthiness.

Support remains not terribly supportive.---Update 4:

Their technical support gave me things to try but nothing worked

There is very bad support in Asian countries

Samsung support is just terrible, I had to explain to them 10 times what was going on with the watch, (I'm not exaggerating) and after ten messages they stop texting me back

Dislike proprietary O/S as lack of apps and you have to stick with stock/samsung apps to get all the features.

Samsung's proprietary O/S gets you nothing but battery life maybe which has shrunk from 2 full days to 1 3/4 in 4 months