Nice.Have a look at the AA in areas of high contrast... window edges, upper oven, books on the table, ceiling lamps, etc. More glare, highlight compress. & a bit of clamping would help.
Try to additionally add highlight clamping... value around 8. Also Rendering in big size like 4K helps, so the AA-steps simply have more pixels.What size have your renders? I had a longer conversation with Houska & TomG about this topic, since it annoyed me in smaller render sizes. Asked them if stronger AA could not be programmed in the Corona code. However, the mentioned things help... especially rendering in bigger size.