I hate USDJPY because I have had two massive big calls go against me on this pair when I was trading the MEME system ( I still do ). I lost 10K over those trades trading USDJPY one year apart.
It owes me big time.
I do have a couple of EA's trading it demo but its not high up my list on profitability results. It is a challenge I intend to work on this year in finding a EA that shows great results with USDJPY & GBPCAD