I've now been running a BSR remap on my 2015 110hp 1.2TSI manual since November 2016 without any issues apart from the car suggesting a higher gear earlier than before. I've never driven according to the suggested gears anyway so not a deal breaker for me but it can get a bit annoying when the suggested gear indicator keeps popping up. I assume the car suggests a higher gear earlier due to the increased torque but don't know for sure...
The performance increase is really noticeable and the engine runs actually better now than it did stock. In my opinion the best part with the BSR remap is that if you buy the PPC unit, which I did, you can change the map to the original one whenever you want. They also notify about possible updates to the map and you can then go ahead and upload the update to the car yourself. I haven't seen this possibility by any other remap company.
I haven't had the car on a dyno but according to BSR the car should now have 131 HP / 234 Nm. According to my butt feeling it's about right.
Link to the BSR Stage 1 page