I get 440 miles or so before reserve city driving stop start. Just done 120 miles ish tonight after filling tank up on motorway, kept it to 80-90 on quiet motorway, stuck to limits on rural roads, average was 49.something or other mpg. Tank range says 500 left.
Cheaper insurance, *almost* equal performance (your petrol cars will do the diesels after 125mph, but with the remap turned on mine has stayed with/slightly caught an R32 up to 125, then he cleared off whilst I just started chucking black smoke out. High revs=no good for diesels) and fuel consumption that will make a mockery of your petrol, plus
lower road tax.
Downers are low rent interior (on the Leon at least) and an appetite for the clutch when its cold, and tyres, lots and lots of front tyres.
My car is simply that - just a car, A-B or at least I thought it was. However tonight I bought a 312mm brake upgrade bundle, enquired about an uprated clutch, and I'm getting that weird giddy feeling about actually liking the thing. Also fitted the Phatbox (MP3 playing hard drive) after it'd been sat for 3 years in a box untouched.
Despite the downers, I'd say there are far more positives, it's a car where you can have your cake and eat it (like most performance diesels are these days). Make the jump, you'll be glad you did. I am, and it's taken me 3 years to admit it.