mmatz

Folio said:

Geez... Not another must own. While I've been buying Apple gear since the 90s, never have I binged like this past year (iMac, iPadPro, iPhoneX, Series 3 Cellular). 

Lady says I'm responsible for 1 point of Apple stock price.

As a stockholder, I thank you 

I have the Series 3, non-cellular version.  Losing the ability to control my music library from the Watch was the only downside of the new model, but it was a big one.  Looking forward to again being able use the Watch to control music in my vehicle, since doing so is much easier (and safer) than using my particular vehicle’s built-in controls.

Having had a Series 0 AW from the start (well, after it finally shipped!), I treated myself to a Series 3 AW, but without LTE. I am quite happy with the improved performance.  Maybe at some point in the future I’ll go for LTE, but at present that feature doesn’t add sufficient value for me.
Not surprised that Apple is crushing this product category.  Even with its minor (to me) shortcomings, it is an amazing bit of tech.

Mine is a version 0, which I may replace with the next version.  But I'm not pining for a better watch, because this one works really, really well for the most part.
I was pleased to discover not long ago that Apple Pay evidently works without having my phone.  Went to the grocery store, realized I'd forgotten my phone, and decided to give it a try anyway.  It worked!
Another pleasant discovery was that the music complication on the watch face shows (via the little circle) how long a song has to play even when I'm playing music through my car's Sync system.
As several folks here have said, it's a lot of little conveniences that add up.  I agree, the Watch is the killer app.

Magnus-1978 said:

This is the most buggy version of ios I have ever seen. Every day there are new problems beeing posted. 

I highly suggest to everyone to wait for 10.1 and higher.

Here are some of the reasons I rolled back to ios9. I am using a iphone 6s

Notes: copying text from Notes to Mail would not match the text size in Mail. Instead the pasted text to too big.

Camera: Most of the time when opening the camera app the camera would be froozen. The fix was to close the app (compleatly) and open again.

Display: I was seeing screen refresh flickering here and there

Hard Reset: When I was doing hard reset I would notice a crash like graphic errors (rainbow like). Similar to blue screen of D...

Sorry to hear you're having those issues.  I'm wondering if there isn't something else going on, such as a hardware problem.  Might be worth a call to Apple, or drop by the store and show them what's happening with your phone.

My experience is based on updating my iPhone 6, iPhone 5S (company-issued), and iPad Air 2, with no problems observed as of yet.  In fact, all three devices appear to be performing routine tasks more quickly.  It's as if the hardware has been refreshed to work faster.
I also have a spare older iPad (a 4, I think) and wonder if it's supported. I may update it just to see what difference iOS 10 makes on older hardware.

Anyway, best of luck.  Hope you find the source of the problem and are able to fix it.