What is wrong with the OS X App Store? I bought a Early 2015 MacBook Pro in November. Working great with Yosemite, but I of course wanted the latest and greatest. Trying to download it over Wi-Fi at my brothers and at an Internet Café was not working. I invested in a Thunderbolt Ethernet adapter then tried downloading at Internet Café every week since the beginning of December. Every time I tried, the estimate was 16, 14, 10 until it settled on 5 hours. I bought extra time hoping it would download. When I eventually had to pause it, I only got 1.8 GBs of the 6 GB download. I thought, ok, well, I can pause it then resume next week. Went back to the Internet Café, resuming is next to impossible. The first time I tried a resume, it started over at 0 MBs. I was like WTF! Did this for couple weeks then gave up. Tried again 2 weeks ago, got it up to 2 GBs, paused, then returned to the Internet Café, tried to use the resume unfinished downloads in the Store settings. Nope, started over. I said, no way! I tried things like changing to Googles Public DNS, this even fixed issues with Office 2016 updating. I noticed OS X starting at Yosemite (since this is my first Mac), has some issues with network downloads. Safari for instance will seem to throttle downloads, when I switch to Firefox as the active application, the download speeds up. Eventually, I said, I am not going to waste one more MB. I loaded kick@$$ torrents, searched for 10.11.3 and lucky enough, it was there. I had tried previous El Cap torrents in the pass, but it seemed like persons were not seeding it. So, I crossed my fingers and hoped for the best. I used Transmission to perform the download. Within 45 mins I had El Capitan versus the App Stores ridiculous 5 to 11 hours. I performed the upgrade to El Cap from Yosemite and was up and running within 26 mins time. Apples App Store needs to some serious work where networks are concerned. I own a Windows machine and I was able to download the Windows 10 November Update within 1 hour. The network performance on OS X is atrocious. Then again, I am new to El Cap, so maybe things have improved since I have not been able to put its through paces. Its nice to finally be able to play with new features like Split View. A subtle update, but nice to have none the less. I have to give Apple major kudos though, the upgrade was so smooth, installed within 26 mins, everything was back where it was, even folders I had open.