The Q50 is my 6th Infiniti. I lease a new one every 2 - 3 years. I've had the Q50 for 2.5 years and have put 40k miles on it. As with my other five, the reliability is second to none! Prior to Infiniti, I had a BMW 540i that was a nightmare to keep running. I test drove my first Infiniti while at a dealer that was fixing the 540, who also happened to sell Infiniti in the same complex.
The fit and finish are exemplary, as were all my others. This is remarkable as three of them were brand new models. I've always been a big fan of the power and the handling as well as the cars inate abilility to like being driven like it was stolen most of the time. I did get the DAS steering option and I love it. All these boy racer weenies in the car rags seem to bash it mercilessly. Not having to make the constant minor steering corrections is a joy on a long trip. My only gripes about this car were the run flat tires were standard. You can get a spare tire option and I replaced them already. The other ilk was the IN-Touch entertainment computer processor was not powerful enough to handle the apps they originally thought could be put in the system. Another great car from Infiniti!
PS: I just purchased a new QX50 for wife