I would like to buy this, but how is it downloaded? It's not one big 28 gig file, is it? I have somewhat slow internet (have to use a hotspot since there is no real internet in my area) so it's much easier if it's got some sort of downloader where you download a small file and it downloads the rest and can pause or resume, since 28 gigs would probably take about 15 hours, assuming it doesn't get interrupted. . 

There is a downloader, so the download can be interrupted (many times even). Files are checked for integrity, then all bad or missing files are downloaded (the download is resumed).  The downloader is actually called the Updater as it is the same program you can run to check for updates.