The EA113 engine, sometimes known as the TFSI, that graced the pre facelift Octavia VRS MkII(and the Golf GTI MkV and Leon FR) was pretty thirsty. It also sounded like a diesel and had a standard timing belt.
The EA888 engine (sometimes known as the TSI) in the facelift Octavia VRS (and the MkVI Golf GTI and the facelift Leon FR) is a much nicer engine, smoother, quieter, no diesel like rattles, a bit more power and about 10-15% better on fuel. Also it uses timing chains rather than belts so that one less thing to worry about.
In my Leon I typically get low 30’s but that’s over a fairly short commute with a roof rack permanently in place. On a longer run I’ve typically got two bikes on the roof so again low 30’s due to the extra drag