Had xbox one a week

IM a firm fan of Kinect 2.0 for voice command and in game use when it's available. D4 is a quirky game that utilises it brilliantly. Wouldn't want a One without it. Oh and not having to use the controller to use Netflix is great.

The Xbox One Kinect is 10 times better than the 360 Kinect for voice commands alone avoid the naysayers on it. I'm 38 and not really into flopping my arms and legs everywhere but voicing in games like D4, Battlefield 4 and especially Ryse etc. are most welcome.
Saying Fire Volley or Archers Cover Me in Ryse through Kinect saves you a beating and time trying to hold down the LB button believe me.

I have the Day one Edition with Kinect and I use kinect everyday. Sure its just to turn the system on and switch between apps but I like it. It works about 98% of the time for me.

You will find others though that hate the Kinect because it doesn't respond well to them or for whatever other reasons they may have. That's fine to each their own. It boils down to what will you use the Kinect for; and that's left up to you.

Games that I'd personally highly recommend that are out now ...

Dying Light

Walking Dead Season 1 & 2

Game of Thrones ( 2 episodes out at the moment, 5 due in total )

The Wolf Among Us

Dragon Age

Dead Rising 3

Ryse Son of Rome

Sunset Overdrive

Far Cry 4

Shadow of Mordor

Alien Isolation

Warframe

Forza 5

Forza Horizon 2

Zoo Tycoon

Titanfall

Diablo 3

Tomb Raider Definite Edition

Sniper Elite 3

Plants Vs Zombies

Yeah, voice commands with Kinect are awesome - I find "need medic!" in Battlefield 4 so incredibly useful.