I've had mine for a few days now. First impressions are very much in line with what has been reported already. Build quality is fantastic, they are very comfortable, if a bit heavy. They look great, better in person than in the pictures. The case they come with is really nice. Cable is a good quality cloth jacket cable. The sound quality is another story. Very treble heavy. Shouty, I would say. To get the bass I want, I have to really boost the volume to the point where a random trumpet, or blast of strings, snare hit, or cymbal crash will be bordering on painful. I really wanted to like these because I'm a huge Monoprice fan, but unless they change or my ears change within the return period, they are going back. I won't be getting the 1060's either because they are open. I have an open work environment, no cubicle walls even, so open won't fly in that environment.
P.S. I read some of the first impressions posted on this thread before I listened, and wondered if maybe I had just been subliminally influenced, so I gave them to a buddy to try for a half day or so, and without any prompting, he basically said the same thing.
Edited to add:
I wonder if the bass will come in a bit more as the pads conform to the head a bit more. The pads are quite thick, and if I press on the outside of the cups a bit, the balance is a bit more of what I like (i.e. the bass comes in a bit more). It's still a bit treble-heavy, but better. Which leads me to a second point. The clamping power of the headband is quite weak. I have a very small head, so your mileage may vary on that one. A bit more squeeze might make the seal a bit better, improving sound quality and overall balance.