It's definitely a personal choice. I'll add my experience.
I knew what the watch could and couldn't do beforehand, and I understood that it was a companion device to the iPhone and not supposed to replace it. But many of the things I thought I would use it for were frustrating and required too many steps to do, or just wouldn't work as seamlessly as I thought they would. I was underwhelmed with the way Siri functioned and the early third-party apps.
At its current state, the watch is essentially a notification hub, and acting on most notifications generally requires you to take out and use your iPhone since the experience is generally much better. Trying to act on notifications using the watch from my experience was very crippled and usually much less convenient. During work, I'm at a computer desk most of my hours, so my phone is usually laying on my desk next to me anyways, so the watch didn't add much functionality, since I don't have to fish my phone out of my pocket every time I want to respond or see messages.
Tracking workouts was pretty cool. The reminder to stand feature never worked very well. It often reminded me to stand after I had just sat down from a walk. It's cumbersome to get to glances if you're in another app, since you have to click the crown once to get home, once again to center the home screen, then you have to tap the clock face app, then you slide up to see your glances. It just requires way too many steps. Clicking the crown is also not very ergonomic.
I was also hoping that the watch would let me control music, get directions, and respond to texts with siri in a much safer way than using the iPhone, but I quickly found out how much more dangerous it was. Using "Hey Siri" is not very reliable, and I would not even try to press the crown to activate Siri, since it's not safe. Pressing the home button on the iPhone to activate siri is much more safe since it only requires one hand (while keeping the other safely on the wheel--free to move) and doesn't require you to look at the iPhone at all. Siri is also much more reliable. Also, because the watch face does not reliably turn on when you raise your wrist, it adds another level of distraction and danger.
I'm sure the experience will improve as the software matures, but at the moment, it was difficult for me to justify the price of the watch for the functionality I was receiving. Doing anything other than receiving notifications and tracking fitness is usually much more convenient and useful on the iPhone from my experience. I will say though, that the build quality is amazing.
