Looking to buy my first audi - A1 Sportback

Hey, as the title suggests,

i'm looking to buy my first Audi, the audi a1 sportback.

http://uk.audi.com/AC9ZWMGU

http://uk.audi.com/AVA8ZD46

My question is:

• Is it worth the extra money to get the S Tronic transmission, and what exactly is it? I've tried searching, but nothing really explained it well to me

• Will I like this car, or have a lot of people had issues with it?

I previously had a Peugeot 208 ('14 reg).

Thanks, Alex.