Yep... I honestly think that expecting ROM styles, a la factory set, to be anywhere NEAR where we each personally like them is optimistic at best.
I have rarely heard a factory ROM style, on ANY arranger, to be exactly where I want it, no matter what genre it is in! I feel that it is one of the things each owner should have to do, because expecting some guy in Japan or Italy, or wherever these styles are made, to have EXACTLY the same idea as me of where the mix should be is lunacy!
Hence, one of the reasons I am still unapologetically a fan of the Roland's. If you DO like o tweak your styles, or SMF's and don't have some kind of fantasy that one day, someone will make an arranger that magically mixes everything JUST right (the 'baby bear' arranger!), the tools that you do that remixing and revoicing on are critical. Most that have actually bothered to dig into this area of the OS (not something many try out casually in a store) have nothing but the highest praise for the way that Roland have engineered this section.
Now, of course, I'm not expecting many to drop their favorite arranger, and rush out and buy a Roland (you can't find them, anyway

), but at least try to get YOUR favorite manufacturer to look at how Roland do it. If it was as easy as Roland make it, few would even worry about how the factory styles sound, because it is SO easy to change them to how YOU (and you alone!) want them to be.