Follow the directions precisely. The temperature is critical. The processing chain - dev, rinse, bleach, fix, wash. The first rinse needs to be the same volume as the volume of developer. Sounds strange, but it is important to color balance. A rinse between bleach and fix is optional - I use it because I process on a JOBO and it minimizes the carryover effect of bleach into fix. The paper is slow, so long exposures are common. It also has a wide exposure lattitude, but suffers reciprocity issues at exposures beyond 1 minute. It also takes twice the change in filter to have the same effect of color change as you may be used to with RA-4 printing. Also, because it is positive to positive, everything is backwards. Longer exposures makes the print lighter, etc. Filter changes are backwards from what you would do to correct when printing RA-4. Once you get used to it, it is not difficult. Good luck.
Bob