With no long-term experience in them, are they sucky in auto mode or even manual mode too?
Yes - they suck in D, S, ~and~ M.
D shifts at or below 2K RPMs with any less than 50% throttle, and is very unresponsive to progressive throttle input (if you start a at 10%, and ease into it it'll basically keep on with the 10% logic until you reach a threshold of 50%). D will put you in 6th gear @40K, which translates to ~1200RPM. And it's very unresponsive to downshift at that point, you can add throttle and it'll just throw more boost at 1200-1600RPMs. I used to laugh maniacally at how stupid it was. "Yeah, let's just throw some more boost at it! That makes SO MUCH SENSE! LSPI IS MY FAVORITE!!!!"
S doesnt ever shift, ever. lol. it loves to run wayyyyy out of the powerband (WOT in S will take you to redline, 6700RPM. WOT in D will take you to 6K, which is a MUCH better shiftpoint on stock ECU since the IS20 can't breathe past like 5.5K).
M also sucks because the transmission operates (read: shifts) MUCH more smoothly and "naturally" in D and S, since when it's in control it knows it's going to shift BEFORE it shifts, and prepares a set of operations that make it shift fast and smooth while carrying boost/power into the next gear. In M mode, it doesn't know when you're going to shift, so when you tell it to, it takes a full second to respond. but without any of the above described operations, so it's unresponsive to shift commands, and when it DOES shift, it doesn't do it smoothly, and it dumps boost between shifts unlike in D/S.
Better in manual mode but the stock programming is horrible in D or S mode. For an example if you are in Drive mode and turn onto another street the trans will stay in 3rd gear lugging the motor and to get it to kickdown to 2nd gear you have to apply so much throttle by the time it kicks down you're going faster than you intended.
^ yes, lots of this. just bogs down the trans as you slow down into a turn in D. My mom's 2010 CC had significantly better OEM DSG tuning. It always downshifted to an appropriate gear, at the appropriate time, to give you the power you needed to pull yourself out of the apex of the turn. this literally will never happen with a MK7 2015-2017 DSG on factory tune. it only bogs, then downshifts like twice to 1st gear because you have to push past 50% throttle to get it to downshift.
I did not find it terrible.
It actually feels more like a manual as it is noisier and clunky.
stage 1 smooths out a lot and makes it have less feel at normal speeds. But the tune is needed with an engine tune to better handle power. The feeling comes back some the harder and faster one drives. I think stock is tuned the way it is to give a more manual feel.
Just my thoughts.
Sandman, you're a different bird. I think that the stock tune is tuned the way it is because manufacturers have "average MPG" goals they want to meet across their entire lineup (pretty sure it's an EPA/regulatory requirement, or at the very least has some sort of federal incentive for them to meet these goals), and by neutering the transmission programming on all their vehicles they can achieve 1-2mpg better "average consumption" across their whole model range. This goal surpasses QA goals like "Is this car fun to drive, like we set out on our mission as a company to do?"
The engineers at VW do what VW has always done: make really awesome powertrains that provide Luxury Sports Car performance/feel in the Economy Car class.
But the marketing/senior leadership teams know they're still economy cars, so they PROGRAMMING neuters the awesome hardware they provide.