If it's of any help to the undecided people. As of yesterday, my car is on stock tune.
I purchased APR stage 1 this past month, enjoyed it and drove on it for a week or two. Then went in for the update and went to the new stage 2. It didn't do so well for us DSG guys. Lots of shift problems and drivability was just bad in general. Go check out that thread if you're curious. Lucky for me, I was still within the 30 day money back guarantee for stage 1 and 2 so I'll have my money back shortly.
All that being said, I'm ordering Cobb in the next few days for a few reasons.
1. Cheaper. I spent $877 with tax on both stage 1 and 2 with the upgrade fee.
2. I get at home flashing, not important for all. I want peace of mind. Car blows up? I flash to stock and remove AP. A little more challenging to get to a dealer with APR or an extra $150 to have fully loaded switching.
3. I wanted live monitoring was planning on buying PolarFis (another $200-275 for those keeping track). Won't have to, Cobb has monitoring built in for my $650.
4. Power on the OTS is a bit low, I'm going to suck it up for a while until I sack up for a Pro Tune. Access Tuner Race should be out within the next 6-12 months. There will likely be more individual/smaller tuners at that point who will do email tunes. I have a lot of friends who did this for their high HP Mazdaspeed builds (450-600hp for those curious, most of them are still doing just fine to this day).
5. It can handle any future mods. I'll let a few more people test E85 first and blow some motors up, but that will ultimately be an awesome route I think, it ends up being so on every other platform lol. I might buy that K04 next year? No problem, it'll do that too.
Overall, I'm going to Cobb because of the feature and price. I can go whatever stage I want/need at any point with no issues. I know so many people on here are so against it, but if you look at features for your dollar? Can't really beat it.
On a side note, I'd love for a stage 3 APR kit owner to buy AP and get a protune. Idk at all, but my guess is that the protune would blow the current numbers out of the park.