Mine's all over the place… It started at 2 days, then it got stuck at 60-something MB, then zoomed to 2 hours remaining, and now it's sitting at a solid but bearable 5 hours. Meh. I'll leave it installing on my iMac while I go to class tomorrow, I guess (my MBP, which I'm taking with me, will still have to wait for dosdude1's final patcher and some testing to see whether WiFi works decently or not… As for the last-gen white MacBook I keep as a backup, which is also maxed out and running Catalina thanks to his patcher, I don't even know if it will ever run it decently with graphics acceleration).