I purchased and received my first Apple computer product last Monday Dec 10. It is a 2.6Ghz, 512GB SSD, 16GB RAM with a Retina LG screen with a Week 49 build. I had very minor game performance issues for the first 2 days under Windows via bootcamp, but after applying various updates all is well. I have had no lagginess, no slowdown, no EFI wonkiness (it shipped with the latest) and have not had to reset the SMC at all. It connects just fine to Wifi N, sleeps and wakes instantly, no lagginess, no stutteryness, nothing of any sort of issue that I see constantly reported about in this forum. Ive used the trackpad and an external wireless mouse, Ive used a thunderbolt to DVI adaptor for a 20 inch external monitor and I even share the mouse with my Windows desktop both from Windows via bootcamp and OS X (via auto start options using Synergy. Synergy itself is a bear to setup, but that is a different issue) I can VNC to my Windows box when needed (it is home premium 7 so RDP/Cord wont work right now) and access shared network folders via wifi in Windows via Homegroup and via finder Command K Lookup. I also have a 3TB External USB3.0 drive for backup purposes that just flies on data transfer rates. VMWare works as expected and running Win7 via by bootcamp partition and a VM of Ubuntu side by side is no sweat. Gaming performance is insane compared to my 6 year old desktop. Its very difficult to drop below 120 fps in Team Fortress 2, and I was getting 50fps or more with everything turned on (except shadows) in Star Wars the Old Republic. My old system averaged 35 fps and 25 fps respectively. Fans kick on and spin up appropriately to manage heat, and it does get warmer in Windows in games than it does under Mac but I do not see any reports of any system throttling of the processor speed to compensate. After the introduction videos of whatever I play, I see the cpu speed ramp up to 2.6Ghz. All in all, my biggest issue is just learning the ins and outs of how OS X behaves.