Hi all. Just thought I would add my comments to the list - perhaps I might add some balance??
This is my third Lexus, coming after 2 IS200's, the last being the LE. I got it the 220D mid January and was generally quite happy...but the vibrating mirror, and hard to figure gear ratios.
Initially, like others have posted, I found the car very sluggish low down - actually described pulling out of a junction as being "chug-chug-vroom!". Sixth gear was unuseable below 80mph, and fuel economy was in low 30's. Economy isn't my real concern as company pay for fuel - in case you wonder, they penalise us for having petrol cars!!
Having done about 1500 miles I took it into Lexus Bolton to replace some trim damaged before delivery, while it was there they said they would upgrade the ECU and said it may cure the turbo lag low down and smooth out the engine. I will add they offered to do this, I didn't ask! (Always been a v good dealership, recommended!) As a note they said they had only done this mod on one other car and didn't really know what the full effects of it were - they said they had only received this mod from Lexus mid-Feb.
Having driving the car home I phoned the dealership to ask exactly what they had done to my car - it was fantastic! From a stand start it now pulls positively and smoothly....through all gears! 6th gear is now useable at 70mph, useable being mirror wobble is not too bad not to have vision! Fuel economy has increased by a little over 3mpg, last tank 37.3mpg - and we should bear in mind I have only done 1600 miles so the engine is still 'tight'.
I know many more will disagree, but I am quite happy with this car following the ECU upgrade. If you haven't had this I would strongly advise you do so as I have never experienced such a change in a car before! I compared it to the dealer as feeling as if they had changed the gearbox!
Finally, though I did say to the dealer that due to the massive difference this mod makes then surely they should recall all cars for the upgrade as a PR excercise.