i run linux mint, which is another variation of linux/unix, it is VERY similar to windows in most all respects, except for compatability...
first thing i will recommend to you, don't make the switch unless you are somewhat computer literate, and i would HIGHLY recommend keeping a windows partition for anything that NEEDS windows... for me at this point, it would be most things media related (gopro, iphone... ect) itunes does NOT work on linux mint (and i believe also not on ubuntu or any other version of linux)
i have been told you can run it "in wine" but i have tried and still can't get it to work, even running windows inside VMware player, (which i also do) it won't mount properly...
i did find a work around to allow your iphone to be mounted onto linux, but it's not allowing me to sync, very frustrating!