It is not cheap lest put it this way. But once you have experienced the beauty of this headphone you don't want to try other headphones in the market.
I have the momentum 1, 2 and wireless.
This one is the best so far. IT has the best size ear padding (although I am abit worry as the ear paddings are stitched around; it might worn off soon or later) - not sure if this is original leather or not.
you can fold it
it comes with a hard case carrier
the design is so coooooolllll!
This is 'truly' over the ear. it fits my ears perfectly!
So far...

I bought these to replace an original pair of Momentum's (model 1) over-ear, so I have been able to compare them back to back.

About the only fault with the originals was that they were a little small for over ear headphones, which made them somewhat uncomfortable.

This new model is slightly bigger - just enough to properly fit over you ear, which makes them much more comfortable. They are just as well made and have the added bonus of being foldable.

Although Sennheiser don't quote any changes to the drivers they do seem to sound a little brighter, with slightly more upper-mid and treble response.

Overall the sound is rich and smooth with plenty of bass oomph - typical Sennheiser really.

Thoroughly recommended.

Man I did a lot of research on this one. These phones are the best bang for buck if true sound quality is what you’re after in this space. Tried the bose QC’s and was dissapointed. Base was muddy though admittedly noise cancellation was better, almost eery and disconnected to your environment. The sennheisers are more of a sound-quality-first option. Comfortable, look cool. Do it.

Although the price tag is comparable to Bose Quietcomforts, these headphones are great if you’re mainly listening to music in quiet environments. Since I mostly listen to mine in the uni library they’re perfect for the low noise level.

The soundstage is quite wide, with a very warm sounding bass making it perfect for jazz or hip hop music. The highs are a tad veiled so it isn’t ideal for orchestral scores, instrumentals or soundtracks, but this is really just nitpicking.

Overall it’s a good pair of headphones and worth it if you can find them on sale.

It doesn't need a amplifier and smartphone is able to drive it, and its sound it still good. The frame is made of leather and steel, durable enough. The cable is replaceable. However, there is just one cable in the package, while the previous version has two... anyway, still a good one

I use these daily on my commute / occasionally at work.

Great look and very comfortable; the folding feature is not a gimmick, keeps the headphones compact and protected when traveling in my bag.

The cord/plug got damaged due to my own fault, easy to find a replacement online and install.

Sound quality is above average - I'm not hugely discerning but a little weak on the low-range, though better than any non-studio pair I've ever tried.

Top-quality product overall, including the price point.

Left my first pair on a train (nightmare) so went straight out and got another pair. Really great and not a terrible prive point. Up there as one of the most comfortable headphones I've owned and great sound quality. A must for if you are travelling and need to hear the sound.

Outstanding comfort and quality in the Sennheiser Momentum 2 over ear headphones. I use mine for an hour a day, 5 days a week while walking to/from work and after 12 months still love them. Sound quality is exceptional - often like the concert is between my ears and the soft leather is extremely comfortable. They've handled the wear really well and remain in as new condition. Pricey but worth the spend.

I naturally have large ears and was disappointed with the 1st generation headphones, so when a second generation had better ear cups I jumped at the opportunity and am very happy I did since these fit my ears perfectly but the only problem is the same as the original the lack of bass is a bit of a downer