Decided to set this up because there's far too much moaning about the J on here and not enough positive points about what is, essentially, a good car. Please keep the negativity away from this thread, positive points only (Can a mod sticky please?).
The J handles so much better than the H that my lap time in my 2.0CDTi SRi was only 3 seconds lower than in my old astra H VXR, both standard setups.
the interior is nice and quiet when cruising.
the 2.0CDTi engine is fantastic, plenty of punch and still getting around 520 miles from a 10 gallon tank = 52mpg