Seconded. The Apple Watch hardware is solid, but the software setup is a complete and total disaster. The "home screen" is completely useless.
I wouldn't go so far as to call it completely useless but it is less than ideal. My issues relate to the busy nature of just about everything else. For instance, it has two buttons, each tasked with 3-4 unrelated functions. The digital crown is a scroll wheel, a home button (1-click), a last app selector (2-clicks), and used to activate Siri (long press). The secondary button accesses the quick communication hub (1-click), activates Apple Pay (2-clicks), and is a power/lock button (long press). Many functions take far too many touches to accomplish anything--for example, if I get a Message and want to reply, I have to click reply, then select from predetermined canned response or can select a button for animated emoji or a mic button. If I choose voice reply, I dictate my message, hope Siri get's it right (she's actually pretty good on the watch), then click 'Done', at which point I'm give the choice of sending as a voice dictation or actually text message, requiring yet another click.
Thankfully, as mentioned, I find Siri quite good and significantly quicker to complete the same tasks. I usually just use her to complete any required actions, generally because using touches in just too cumbersome. But sometimes, voice actions just aren't ideal or convenient.
I'm not sure how they could clean it up and simplify it but I'm hoping something significant is done for Watch OS 3.0.