Had mine for a couple of weeks now (IS250) and it's great. As for driver feel, well I have to agree it was non existant which i think is more the lightness of the electric power steering, but also the factory fit wheels. I soon sorted that with a set of 30 profile tyres and it handles superbly (225/30/20 & 255/30/20) I think the front is a lil too narrow for my rims though so will go up to 235s. Amazingly, the ride is almost virtually the same as with the standard 17s so I attribute this to the well damped suspension the cars have as standard.
DVD and Nav is nice and the ML system is good for a standard audio system. Economy wise, it can be good. I average anywhere between 21-29mpg. considering my daily commute is 21 miles to and from work at a 11mph average speed this isn't too shabby at all - I define urban Driving :P So far, one of the best cars i've owned, although I wish the engine wasn't so efficient as it seems to take a while to get the heater warmed up on these cold mornings!
another improvement I made was the Toms speed shifter. Unsure why but in auto mode it has improved throttle response/driveabilty. Took 2 mins to fit and was the best £25 investment I made on any car mod. Really odd, I thought I was just imagining it but even my wife as a passenger could tell the difference when I removed it......maybe it was the auto box learning the quicker upshifts?
+ve - Best looking car in and out of it's sector
+ve - sure footed, excellent grip
+ve - build quality (thus far)
+ve Excellent auto box