Sounds considerably less impressive than a 90's Silverado with rusty exhaust. Interior feels marginally nicer than a CLA, but nowhere near as nice as a C-class. Seats are adequate, I guess. I like the blue calipers.
Conclusion: why would you but this over an E63? It’s not even on the same level.
And no, I don’t hate BMW. I fact, I would love to open an E34 and E39 M5. But I don’t because parts cost, extra pain to work on them over my 55, and overall reliability versus my 55. And a Z8. Clown shoes are fun. The new stuff is junk though.