Dropbox, itunes transfer (or one of the other programs), streaming, remote access, etc etc etc - generally works for most people. If you need to transfer gigs and gigs and gigs - a wifi enabled mass storage device (a non apple product by the way..), would make your life significantly easier...or just using iTunes or one of the other transfer apps, and spending the few seconds it takes doing a direct transfer to the iPad..
If you wanna talk about limitations, I think the ones that affect ALL users, allows for no workarounds/solutions, ..are the bigger "limitations." After being with Android for years and then switching over to iOS, the real limitations I see are the lack of apps in terms of quantity and quality on Android, compared to iOS....not very specific situations a few users construct for themselves.
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