Still, 30,000 samples isn't funny haha. 2X 780s, 50 min rendertime, + just a hint of cleanup with NeatImage plugin in Photoshop (just the ceiling). Max plugin, lighting coming from White Environment, Daylight system, and BlackBody emitters. No windows of course, would add too much noise.
DL+Diffuse @ 2 bounces, around 9MSamples/sec! Octane rules. Starting to get a mix between photorealism and "beautiful" archviz.. I think. Comments/crits regarding image beauty all welcome, please tear it apart!

