Outside of Macs, I've had experience with two kinds of Apple product – both positive. The first being iOS devices, namely the iPhone and the iPad.
These devices were described by furious people who hate Apple as limited 'walled gardens', yet proved to be exciting and extensible in terms of entertainment and creativity. My iPhone quickly ousted handheld consoles for gaming, and my iPad is now what I use to write all of my music.
Essential reading: The best Apple Watch apps
The second kind is an actually closed platform: the Apple TV. Until the most recent revision, the little black box only did what Apple allowed: download content from the iTunes Store, talk to iTunes on a networked PC, run a selection of US-oriented pre-loaded channels, and grudgingly stream other third-party content over AirPlay.
The experience was inflexible but robust. In a sense, the Apple Watch increasingly feels like the opposite, and I wonder whether Apple Watch should have been more Apple TV than iPhone.
There were good arguments for opening up Apple Watch to third-party developers. Most were about bettering the competition and letting Apple's new device find its place. There's also an expectation people should be able to load apps on to pretty much anything they buy.
And just as the iPhone quickly stopped being merely a phone for many people – it's a tiny computer that happens to have a 'Phone' app – perhaps the aim was for Apple's watch to transcend its very watchness, becoming a supercomputer on your wrist.
Check this out: Apple Watch 2 investigation
That sense of ambition should be admired; the snag is the Apple Watch app experience too often remains miserable.
I've written Apple Watch app round-ups for Wareable, and the first was a giddy, joyful plunge into a pool of possibilities. So many apps were clamouring for attention. Every one claimed to be transformative. Quickly, I discovered most were terrible.
There's plenty of apps, but quality is a problem
There were exceptions, most notably Lifeline, an excellent game that brilliantly played with the conventions of time and narrative structure, along with taking advantage of – rather than fighting against – the limitations of the Apple Watch interface.
Mostly, though, using apps has been akin to wading through treacle; trying to get anything done can be nightmarish.
We were told watchOS 2 would fix all this. Instead of constantly communicating with your iPhone, native apps would mostly do their thing on the device itself. Everything would be faster! Better! More responsive! Magical!
But the app experience too often remains dismal.
A familiar sight for Apple Watch users
Launch one and chances are it'll whirr away, to the point it's quicker to get out your iPhone and use that instead, eradicating much of the point for having an Apple Watch in the first place.
Once previously opened, apps sometimes stay in memory and respond more rapidly, but if not you get to watch that exciting opening animation all over again. (This is assuming the app doesn't crash and send you back to the launch screen, which happens annoyingly often.)
It's for this reason many Apple Watch owners I know now mostly use the device as a watch. The problem is it's not an especially great watch, even if you've managed to perfect the 'wrist flick' to turn the screen on, without accidentally punching someone in the face.
Of late, my Apple Watch has sometimes not even managed that simpler duty. It once spent a week buried in my office, suffering the ignominy of several days 'lost' underneath a drained Tesco Hudl. I realised I didn't miss it.
All too often I forget to put my Apple Watch on
There are glimmers of hope. A handful of apps work well within the limitations of the device, getting directions via haptics is smart and genuinely useful, and the glance and notification systems can make life easier when you take the time to set them up properly.
Third-party compilations are sometimes a boon, too, for example sending you directly to Fantastical, to avoid Apple's inferior Calendar app, or placing flight information front and centre. But there's still that nagging sense this is a device with rough edges in half-baked software – a stark contrast with its perfectly finished hardware.
You might counter that this is in fact my first 'third kind' of Apple product: one where I expected too much of it, or where it just doesn't fit into my life. But the more I share these nagging doubts, the more other people admit they feel similarly. It'll be interesting to see if such issues are addressed, or whether 2016 will merely bring more of the same, only – given that we're talking about an Apple product update – in a thinner form-factor.