I have had 2 Acura's and frankly they wren't as reliable as my Honda accord, prelude and civic. The Honda's were near flawless.
I think when a company goes for more power , weight , complexity the simple reliability decreases.
My Mercedes has cost more to maintain than any of my previous 10 cars.
So many cars, so little time.

__________________
Steve Danville
what i did myself.
CPS
rear shocks
MAS x 3.
SparkPlugs (twice)
Fuel pump & Filter
Window switch
replaced both failed horns with Honda horns.
Cleaned ERG Tube
Oil changes
Oil consumption Fix
Brake Pads
A/C Recharge
Anti-Freeze change X 2.
Front Shocks. Monroe. $90
Mercedes Warrenty Work:
Harmonic balancer,power steering clamp. Cat converters.Drive Shaft Bearing.s
Replaced Outer Lower Tie Rods and front lower ball joints at 156,000 miles