5000 samples, a bit of AO, light portals, area lamps, sun lamp and some Blendswap models. Nothing fancy 
~3h50min on GeForce GTX760 4GB.
Background and vignette - Photoshop.
Cycles is a great renderer, but seriously - 5000 samples and noise is still there…
Nice render…i know what you feel…in my Bathroom project render take 3h only 1500 samples and 720x1280 size…love cycles but this noise … ;(
Ah yes. Cycles has always performed poorly for indoor scenes 
To the OP this might not be major but I would increase the focal length a bit as there is some perspective distortion that we don’t see on photos. Awesome render regardless 