Is downgrade still an option? I've been postponing upgrading to new OS systems for a long time now, I only upgrade after the combination of system/programs I use is proven to be stable. I always upgrade personal Mac first, just to be sure. On a work Mac, sometimes I will wait many months before updating, but it's worth it (always problem free). Apple is good at many things, but they are absolutely not immune to early adoption issues, nobody is. Nothing more frustrating then trying to work on a machine with compatibility/software issues, not a single of new "candy" features is ever worth the frustration of experiencing basic things not working properly.