Cobb AP worth it?

I have a DSG mk6 gti and I’m looking to eventually getting a stage 2 tune once I get a DP. While looking on marketplace I got a really good deal on a Cobb AP ($300). I looked into it and I saw that the ots tunes aren’t good at all? Also how would I get a stage 2 tune if they don’t provide it? What should I do ???