That was mixed driving too, so better when cruising. You can hit the official MPG figure which is a rare thing
The only problem with these engines is some of the cylinder liners cracked, but it is rare. There is a mod to prevent it which is about £700ish. It is advised if you want to push 280hp or more and be reliable (the RS used the same engine, but was reinforced from the factory). The T5 engine was used in old cop cars and lasted 100,000s of miles. So it is mostly bomb proof when looked after.
Only reason I sold mine was I got a new job with a longer commute. So swapped it for a mk7 Fiesta ST (which was WAY cheaper on fuel, tax, tyres, etc).