OK to add some fuel.
My wife and I went for long test drives in the base and S 991.2 as my wife wants a new "four" seater

I'll make some general points first (and I'll say this up front historically I haven't been a great fan of the 911 (except GT3). Both cars were equipped with PDK, sport chrono and PSE
1) On fire up - the flat six noise is there - the angry growl
2) Once moving the sound is definitely muted but nontheless still there - if you want noise you definitely need the sports exhaust
3) I found the dial for sport, I, O and plus settings slightly awkward - but it will be easy to get used to
4) The 20 second performance boost button works very well, very functional and easy to use. Press once to engage, press again to disengage
5) Both cars have PASM as standard - comfort mode feels about the same a sport mode in the GTS. In sport mode the damping is quite tight.
6) The base is quick and the S is very, very quick - easy sub 4s to 100kmh
7) Both cars rev out to the redline - they both clearly make great power to the redline. (If you look at the power curves, at high revs they drop very much like the old 3.8).
OK to handling
The handling is very good on both cars, in fact hard to split the base and S (the S did not have rear wheel steering) - turn in is sharp, direct and accurate. Grip and traction levels are high and feel as high as the GTS although the 991 is now on N1 P Zeros (GTS N0). The feel through compound corners was very, very planted the engine placement in this iteration of the 911 imparts and organic feel through corners of this type. It flows beautifully, you notice the weight, but more in the form of a balanced pen - you use it to advantage.
The NVH in the new 911 is great, this coupled with feeling of heft (in a good way) imparts a strong GT flavour.
I came to the following conclusions (and in some respects they seem obvious)
1) The new 911 is quite a step up from the last model, the flat six has retained a lot of character and the performance increases both in outright punch and handling are significant.
2) The feel is more along the lines of highish performance grand tourer - with excellent dry grip, traction and balance.
3) In contrast the GTS feels light, nimble, agile and sharp relative to the 911s planted feel. They are essentially different solutions to high performance handling - both exceptional.
Now heres the real eye opener - IMHO if you want to buy a 911 as a quick, comfortable GT car - the one to have is the base with PSE, PDK and sport chrono.