I wonder what kinds of "hypes" you were having to begin with. Did you expect the battery to be everlasting? Did you expect a supercomputer sitting on your wrist?
The problem with these early Apple Watch reviews is simple. We don't know what to expect out of the ecosystem. I've seen too many colleagues losing their job after writing negative reviews on Apple product lines. iPod was a starter. Then iPhone, then iPad. Macbook Air was on the list, OS X was on the list as well. So for whatever review I've read, and apparently you've read through MR, needs to be read with good amount of grain of salt.
As for myself, I'm not surprised to see those reviews. Watch is a watch. Not many people are watch-enthusiast anymore, except for people looking for high-end fashion icons. I'm only interested in it as a watch/fitness tracker. So as long as it serves the purpose as it is advertised, it won't my decision.