The above use cases pretty much mirror mine (as someone who does a lot of cooking, brewing, and woodworking, I find "Hey Siri, set a timer for _____" particularly useful when my hands are covered in _____). Thanks for the show-me-pictures-of tip — didn't know about that one. I also use the Wallet app several times a day for loyalty and membership cards. You can create your own for places that don't offer an app or Wallet integration (YMCA, Biggby, etc.) using PassSource. Works like a charm, and if you include the latitude and longitude when creating a card, you'll get a notification when you're in the vicinity. Lastly, I just upgraded to Sierra at work, and am really digging being able to unlock my workstation just by walking up and tapping a key (I wish it would work in reverse too, locking the machine down when I wander off to a meeting).

Here are some of my thoughts and observations:

• I wear a watch because, after spending all day in front of the computer, I prefer to spend my free time working with my hands — woodworking, gardening, cooking, cycling, kayaking, home improvement, etc. Yes, I almost always have my phone on me during those activities, but pulling it out to check the time is oftentimes inconvenient or impossible, and sometimes downright dangerous. That said, I've no plans for wearing my Apple Watch during many of those activities, as I'm too afraid I'm going to break or scratch or drown it. I've no such concerns about my day-to-day mechanical watch.
• As someone used to wearing large, heavy mechanical watches (a pair of pre-Citizen, stainless-steel-and-saphire Bulova Accutron chronographs) on a daily basis, I find the Apple Watch neither large nor clunky. In fact, it's quite a bit lighter. I have the 42mm version, and I'm 6' tall, roughly 150 lbs.
• I got mine for $400 off of Craigslist. It's the stainless-steel-and-saphire version, and had been worn exactly twice by the seller in the four months she owned it. I see it as somewhat telling she was willing to take a $200+ hit to her pocketbook simply because she had no use for the Watch.
• I find the Watch most useful for notifications — being able to quickly scan a text from my girlfriend or see who just sent me an email is freaking awesome. I'm 35, and no luddite, but I still feel pulling out your phone in the middle of a conversation to be rude. Glancing at my watch feels much more natural and far less disruptive.
• I really like the activity monitoring functions — I'm already fairly active, but getting reminded to stand up and move around every hour or so is a nice feature. That said, I find it annoying that the pedometer in my iPhone doesn't send data back to my Watch when I'm not wearing it. If I'm out felling a tree and disposing of the corpse, I'm not going to risk destroying my Watch. My phone is far more protected, so I have it on my at all times. All those steps accumulated dragging branches and carrying split wood? My phone knows about them, but not my Watch. Same goes for entering calories burned doing activites Watch doesn't understand — my daily 1.5 mile swim goes un-noted.
• Why, in 2016, are none of Apple's devices waterproof?
• The bottom button seems extremely underutilized, but I'm not sure what else it could be used for.
• Every other day or so, I accidentally take a screenshot when the back of my hand presses the digital crown and the bottom button at the same time.
• Glances are useless — the only ones I have installed are Settings, Heart Rate, Just Press Record, and Remote. The rest are more trouble than they're worth, take too long to scroll through, are way, way, way too slow (Weather Underground, for example), or do nothing more than launch an app.
• Again on the subject of notifications, the integration between the Apple Watch and the iPhone is outstanding. Only receiving notifications on the Watch *unless* you're already looking at your phone works exactly as it should. Now, why the hell Apple can't fix the integration between these two devices and my laptop or iMac (I don't need a notification on my Macbook if I'm currently in Messages on my phone).
• I wish Apple would let developers create their own faces. I feel like none of the built-in ones are exactly what I'm looking for, particularly when it comes to complications.
• Speaking of complications, I find they're the easiest way to launch my most-used apps — Weather, Calendar, and Stopwatch.
• I like the sensitivity of the Watch when it's in Nightstand mode quite a lot. Lightly bumping the side of my nightstand, or thumping the floor with my foot when I'm across the room brings the display to life every time.
• Siri works really well, but is a bit slow. That said, I use it for roughly 50% of my interaction with the Watch.

For those of us that commute as well as ride long distance for pleasure, this is actually a major upside. Where I live, most drivers will fully enter the opposite lane to give you as wide a berth as possible. When I commute the ~8.5 miles to work, by the time I reach the city, I've encountered drivers who will lay on the horn, crowd you off the road, and lean out the window screaming obscenities. The worst offenders—and this holds true when I drive, as well—tend to be those people who, for reasons unknown, still refuse to use a hands-free device whilst driving.

I'd just move the GPS to my bike and wire it up to a spare car battery. Then I'd have a good excuse not to work out ("But honey, if I go for a ride, it'll cost us...") AND I'd save money in taxes.