Audi A1 Engine Review: How does it perform on the road?

I'm seeking fellow Audi enthusiasts' insights on the A1's engine performance. Specifically, I'd love to hear about your experiences with the 1.0 TFSI, 1.5 TFSI, and 2.0 TDI variants. Have you encountered any issues or do they deliver as expected? How does it handle daily driving, acceleration, and fuel efficiency?