Yes, I've regretted upgrading to Yosemite when 10.10.1 came out... First thing, Filevault managed to crash and corrupt my hard disk. Had to restore from my back

Yes, I've regretted upgrading to Yosemite when 10.10.1 came out... First thing, Filevault managed to crash and corrupt my hard disk. Had to restore from my backups (not a huge issue but a waste of time). Then, I cannot connect to either iphone or my wife iphone's hotspot without turning the wifi off first and then turning it on again. I have the same issue on both a macbook pro and a macbook (but didn't have that issue before Yosemite). And in term of performance, my macbook pro is nowhere as performant even with the latest Yosemite update as it was before. I also have noticed a strange issue. On yosemite, whenever the battery reaches 5%, everything slows to a crawl... I feel that the last really stable OS from Apple was Snow Leopard