Purchased in December of 2013. Since then, we now have 9,200 miles on her. It's great! Love the look of it. Aggressive for a smaller SUV. AND the comfort of it! Options are great. EXCEPT the stock GPS sucks. It can't find it's way out of a paper bag. AND, for it's cost, there should be more (Standard) options. AND the iPod station keeps forgetting that it's plugged in. A back up monitor, better GPS ($3000 option) and tilting mirrors would be groovy standard. Not a lot of room for stuff and the dog.
I bought my GLK 350 base 2014 model back in August 2013 for 36k. I have driven around 2500 miles. So far i have not found any issues with the vehicle. Smooth ride, negligible noise while driving. Two important features that i liked the most. 1) It has two modes, ECO/Sport. In ECO mode, when stop at a light, engine stops and saves gas. 2) while stopping at a light uphill, you can just take your legs off from the brake. I was surprised at its fuel efficiency. It gives 24 mpg for city and over 31 for highway. For a V6, what else you can hope for!!!
The GLK is exactly what I was looking for. A lot of the SUV's out there today are nothing more than mini-vans designed to appeal to male drivers. That being said, I purchased the GLK for two reasons: performance and quality. The GLK moves; it's nimble, deceivingly quick (when in sport mode) and it holds corners very well. The paddle shifters are awesome! The exterior has very distinct, bold lines and the interior is luxury as it should be. If you have need for more cargo room than a sedan, but don't want sacrifice performance... the GLK is for you. Oh, and it's a Mercedes- German engineering. Need I say more?
If you think that another suv with the stated purpose of luxury hauling of a couple of people on vacation or not really vigorous living, is better - then you are dreaming. Who really cares about the people riding in the back seat - I have a sedan for that. The cargo space is fine - an imperceptable difference to the competition. Simply a great car that does what it is supposed to do - especially if you get the distrionic plus, active lane assist and the rest of the works. How can anyone complain about this vehicle.