Well, in the USA users of arranger Keyboards are a minority in general. And Ketron is the most discriminated brand.
I remember, that I had no idea about Ketron. My local music store had Technics and Yamaha and Korg, but this was too confusing to me, the same with Roland. At this time, the Japanese companies tried to match, how they imagine US preferences. I say it so with some intention, because today the pretty German Yamaha Keyboards can also please Americans.
I had opportunity to see someone playing a Ketron with factory rhythms, at this time it was Solton. I was so surprised, how well the styles match with the music. Because on my Yamaha I had to create own styles.
Meanwhile, Yamaha and Korg are better for the usual pop music and the all time favorites than Ketron. But for me, Ketron is a good solution, because I changed from the usual party music to worship and gospel, in this case it's better, when the factory styles aren't too close to popular music. I also doesn't try to imitate Hillsong, Vineyard, Bethel Redding & co, so I find some matching styles.
What I like the most about my SD90 is the pattern length, that much styles has 8 drum variations, that when you play bass lines on the piano, you can force the style bass not to play other notes, than the root or the lowest note I play. Event isn't an option for me. The only thing I would do, that I use the SD90 with my Tyros 3, to have more options about styles. A Genos wouldn't also be an option, too much features I wouldn't use, drum kits, that are too boomy, a revolving drums function that seems not to work with all styles.