Despite having issues with Nike kicks in the past, both the Nike Zoom Terra Kiger and Zoom Wildhorse blew my mind w/ awesome. I found that the Wildhorse became my "work" horse and spent a bulk of my training miles in the past few months in this shoe. It really is surprising to me how much I enjoyed it.
While the shoe is heavier than the Terra Kiger (9+oz vs. 8oz respectively), I found that I didn't necessarily notice the weight addition, and it felt like a much lighter shoe. Also, the upper has been awesome, the outsole grip surprising, the flexibility a delight, drainage a successs, and the overall running experience a joy.
One of the major issues I have with this shoe is the lack of a rockplate. Some people would disagree and say that the midsole provides enough protection, but after running the Gorge 50k, I found that the midsole just wasn't enough for the longer runs. By adding a thin, light plate in the mid/forefoot, Nike could not only distinguish this shoe from the Terra Kiger, but make a stand-out performer for the technical trails and races out there. Also, the shoe seems to be wearing a bit prematurely on the outsole and outer most layer of the upper. While I have no doubt the shoe will continue to rock for hundreds of more miles, I wouldn't expect too much wear after 100 miles of training/racing.