A lot of ((rich)) people love this vehicle for its spaciousness and luxury, I've tried the back seat and it feels better even compared to S-Class W222 (I haven't tried W223), and because the shape is like a brick, there are tons of headroom and legroom. Feels like a moving home.
The LM series is basically the more expensive version of Toyota Alphard. But, yeah I do agree it's rather ugly. I prefer the last model.