The downloader itself also just doesn't meet the level of quality I'd expect Microsoft would want before putting their name to something. Microsoft is meant to be all about cloud, and this seems to be a single threaded downloader, pulling one file at a time, then decompressing it. Once it's decompressed fully, it moves into the next file.

It's not a deal breaker for me - I just left it running for a couple of hours, but the process seems sufficiently fragile that many people had quite serious problems getting it to download.

I'm not a game dev, but it feels to me like there's a few areas where FS falls short of what I'd be expecting as Microsoft. I'd want it to be responsive and start quickly (at least presenting something on the screen), and I wouldn't want it to be using full GPU in the menus. Teething issues are to be expected, but the downloader is critical and it's the first experience people have. A shame they didn't use some more reliable file transfer tech (or even just thread it!) The general lack of multi core use on the sim is definitely quite disappointing though for a 2020 release that's doing lots of general calculations and other tasks that benefit from threading.