I love having the new machine to play with, I love how quiet it is, I love the way the games look, I love Kinect when it understands me.
I hate Kinect when it doesn't respond, I hate that my TV resolution is downgraded from 1080i to 720p, I hate that the two games I own (FIFA 14 and Battlefield 4) have bugs which should have been fixed before release, I hate that running the TV through the xbox one isn't as reliable as I'd hoped for and is not very useful, I hate that I had to buy an extension cable for my play and charge kit because the one supplied is too short.
That may seem a bit one-sided, but I really do still like my xbox one despite its flaws. I've hardly touched my PS3 or my xbox 360 since I received it. I just hope that they patch some of the issues in the near future.
NB: The bugs in FIFA are: goalkeeper not taking a goal kick so match had to be aborted, be a pro camera breaking and following the ball instead of my player (required a reset of the console), using "sim rest of match" option goes back to the career screen instead of showing the result. The bugs in Battlefield 4 are: sound effects switching off for extended periods during online matches, game crashing regularly during matchmaking, campaign mode not saving at checkpoints correctly, the text for resuming the game in campaign is the "Restart Mission" text until you press down then up and it switches to the "Resume" text.