Quick google search shows many said to be issues of users having poor wifi connection, dropping slow etc. But it appears not many people on here are having that issue? Looked through the bugs thread and didn't see much on this topic. Clean install time? Man do I wish apple gave us retina customers a ethernet to thunderbolt adapter............... 40 min into Yosemite download and only 300mbs so far. Machine : early 2013 MBP 15r 2.4. ---------- could use ethernet port on my display but that would be a major pain in. May have too..