 After having a less than acceptable ownership and service experience with my 2015 MBZ S63 AMG Sedan (Transmission failures less than 8k miles), I decided to try the new 7. I would have opted for the Alpina B7 had it been avail but due to timing I opted for a 750i xDrive.  Although not quite as fast as the much more expensive Benz I traded, this car is far more engaging and athletic to drive. The 4.4L V-8 is silky smooth and the transmission programming is spot on. On a car with as much technology as these high-end sedans have, I much prefer the interfaces and user-friendliness of BMW's approach to controls, infotainment, and gizmos (exception of the seat controls.... MBZ has the best placement for seat controls).  The drive settings provide a cadre of options ranging from pillow soft to firm. Perhaps I haven't discovered how yet but I'd like the car to stay in the mode I last drove it in (defaults to comfort every time I start it up). In all drive settings the car performs admirably on road trips over varied pavement. I do notice more dramatic pitch from the front suspension than I am used to in a BMW under hard braking or hard acceleration.  I don't opt for the 21" wheels based on other's reviews that they are overly harsh. I am running the 20" M-Sport 5-Spoke wheels on Pirelli Run-Flats and they seem to be a good compromise. I am sure, as with all other BMW's I've owned, performance comes partly at the price of accelerated tire wear. This being a long wheelbase all-wheel drive 7-series, I expect 12-15K miles out of a set of tires tops....  The Bowers & Wilkins Stereo is worth the coin and far superior to the top of the line Burmester Audio in the Benz (Speakers in my AMG were poorly designed/installed and housings began resonating badly very soon after purchase). My initial impressions on the new 7 series are positive and my hope is I still enjoy my seat time in this car in year 2, 3, and beyond. I believe BMW's biggest strengths in this segment are in it's general user-friendliness of high end features and general quality implementation and refinement of all systems. For me, BMW has done a far superior overall job to MBZ and Audi and worth noting, Tesla (Sorry Tesla, If I want to open my sunroof, I don't want to browse through menus on a big screen to get there....).