I cancelled my MTW2 order and just use my MTW1 as they are really new. I returned my first pair cause the case broke and they sent me a brand new one a few months ago.Personally, I found the MTW1 even better with regard to sound than the MTW2 but only a little bit so. I had both models and sold my MTW1 when I bought the MTW2 and remember that I was a bit disappointed even as I loved the sound of the first generation and found the 2s not as exciting, punchy and detailed as their predecessors. The sound of the MTW1 was a marvellous combination of all that.
Things have gotten better with firmware updates over time and the "High End tuning" feature did refine the sound as well. But no matter the (EQ) setting, I would still give the edge in pure sound quality to the MTW1 up to this day. Most other things are better on the 2s (battery life, ANC, size/fit, case hinge) with one exception: The MTW2 had very slight white noise but that was only audible in very quiet environments and when no music was playing.
I've sold both in the meantime. The MTW1 mainly because of their infamous battery drainage problem and because the left bud failed me twice within 9 months and the MTW2 after they they had that very same problem after 6 months or so. I was not impressed by their durability at all but maybe I was just very unlucky.
Edit: Oh and one more thing that always "bugged" me a bit was the relatively low volume levels on the MTW2. When turned up to 80/90 percent volume they are loud enough with most new recordings but sometimes head room was missing for me on old recordings or classical music.
I have now bought the Sony WF-1000XM4 and while they don't sound as good as the Momentums, they are much louder and have a lot of advantages (better EQ, ANC, battery, both buds can be used independently etc.)
I'll keep my XM4 for now and maybe the PI7 will be in stock again, soon.