I used the Epson free download link to get SilverFast on Mac for my V600 (though I also lament the lack of meaning Linux support, but alas!) and while the usability does leave a lot to be desired, I like that can save to RAW 16-bit TIFF files so I can then use my scanner as a de-facto sensitometer, which is more difficult with only 8 bits of resolution.
I agree that the film holders are super fiddly, however, and I've come close to snapping mine on a number of occasions. I'll have to check out the BetterScanning options again, as last time I looked earlier this summer he had temporarily ceased sales and I believe is back in business now.