If it was just rattles it would be fine. Ive got rattles, been in three times for the doors and dash. Ive also got a seemingly unresolvable headlight issue. Ive had issues with the entertainment unit locking up. I have creaky windows, they sound like sandpaper going up and down. I have an undiagnosed clunk from the rear which varies between constant and sporadic depending on the road. The rain runs off the car and into the boot when opened and the same for the back seats. As the weatjer is colder I often have to start my car twice in the morning to fix the headlight levelling. Don't get me started on the ridiculous level of road noise from these things either. Badly designed, badly built and seemingly badly supported. Why would I recommend anyone spending 20k on these cars? Unless Im just being dramatic and continuous ballaches are part and parcel when parting with good money?
if I'd had to put up with what you have I'd feel the same as you. Glad I haven't - best of luck with your next car, whatever it is.