[AlexK]

We have one (GLK) in the family and I don't consider GLK's interior "poor". I really like the angular shapes of its front dashboard and the materials are a good quality (plenty of "soft" plastic, no rattles/creaks whatsoever, unlike with my 328xi). As for driving it - it's a typical "Mercedes" feel, with an overboosted (but not as much as on other cars, like almost all of the Lexus models) steering assist and a long brake pedal travel. Other than this, there's nothing negative about it - the automatic transmission is pretty smooth and the throttle response is pretty linear, same goes for the suspension (I would gladly have the same A/T, throttle programming and suspension on my 328xi). I suggest you should simply test-drive one and decide for yourself if it fits your driving style better.

One thing I forgot to mention - if you value fuel economy, you should be aware that GLK still has a somewhat outdated, non-turbo, non-DI V6 engine and its fuel consumption is somewhat high.