I have a 2021 GLC300 and love it, very comfortable, it’s quick surprisingly so, not really an economical car in fact the worse of the cars in the Mercedes range I have owned.
Mine is a premium plus so has the sun roof and Burmester system, I’m not too fussed about a sun roof in fact I find them a negative but I do love the Burmester system.
I had not considered an SUV before but since owning one I can see the attraction.
I have had no issues with mine but it’s still low mileage at around 13,000 miles.
Oh! I also have the running boards which I’m not keen on but can see the use for children.
There is no steering vibration on mine and I believe this was pretty much cured on later cars, mind you it was just a vibration on slow speed steering lock which bothered some owners and not others.
Robin