Most of the professional reviews advise you to save your money and skip the 5.6L engine and the technology package That's good advice. But, if you don't want to pay what they want for a comparably equipped 550i or a E550 but still want comparable performance then this is a great alternative. I think the Infiniti interior is far better than either Mercedes or BMW in terms of comfort, design, and finishes used. It's a beautiful car, inside and out. And if you're currently driving an older M35 or M45 then this car will not disappoint. I like the technology package but I can see why some people would find it annoying. I think Infiniti has struck the right balance between performance and luxury with perhaps a bit more emphasis on luxury than the previous M models. And it's a great car for taller drivers. I'm well over 6' and can spend all day in it and not be fatigued. It's definitely worth considering.