My dealership gave me one of the $69k EQS SUVs for a loaner while they worked on my B250E... It's a tank. Way too heavy to be energy efficient. Range was nice and it has all the luxury facets about it, but you are paying for the luxury... Way too expensive.
I have the 2014 model and I had the coolant leak in the motor around 35K miles. It's a $13k fix btw. CarMax warranty covered it for me. My range really hasn't dropped much but I live in CT and winters really take a toll on the batteries.