I received the dark blue PM case yesterday and compared it earlier to the 16 case. Yeah the 16 fits in it fine (other than a gap where the "plateau" is (How many marketing meetings were held to come up with that name!?!?).
These are a big upgrade over the previous finewoven fabric cases, at least on initial impressions. They feel very high quality. Initial impression is good. I hated the previous finewoven cases out of the box. I also had 4 of them in a year as the material kept ripping and getting terribly stained/dirty looking.
I also dislike silicon, while i don't have an issue with it ripping or breaking like some do, i don't like the feel, they feel 'cheap' rubbery (well it is!) and they are too grippy. But I've used one for the last year on the 16PM.
The TechWoven case feels in hand about same bulk as the 16 silicone case, though the edges are a bit more square so it might feel slightly larger.
I wish they did leather but well give this a go. First impressions good. Phone is scheduled to show up 9/19 so we'll start to use it then.