the nice thing about the DR15 kakadu for me is: i can now render DCPs from my beefy linux machine!
didn't test it in cinema, but will do soon!
and as a former projectionist i don't like encryption at all

. and it might be slower, but it is still faster on my linux machine (supermicro, double Intel Xeon E5 2687Wv4 3,0 GHz, 12-Core) and three titan pascal x) than on my hackintosh with my i7 8-core 3ghz and one titan with finaldcp. and finaldcp is pretty fast as well.
i am not sure if the gpu is used when rendering kakadu... is it?
if anyone is testing the kakadu dcp-engine meanwhile, please post your results!
one thing i do wonder: is there the possibility to change the gamma of your viewing environment when creating dcps? in finaldcp there is, and also in dcp-o-matic and i assume in easydcp as well.