I just received mine (i7, 526GB). I had to order through my work place vendor so it took almost 2 months to receive it. Then I had to go through an interesting hiccup. When I fired it up, it DID NOT go through a typical new Windows computer setup process. It went straight to the log in page. Everything was locked so I couldn't even turn on the WiFi. I called a tech support and a tech person told me that it is not uncommon that this happens as an engineer forgot to go through a reset process after the testing. However, after purchasing so many computers, this is the first time ever happened to me. She took me through the hard-reset (basically holding down a power button for 30 sec etc). However, it did not work for a while and it went into UEFI screen. She had to talk a supervisor after struggling for 30 min. While I was on hold, I tried it again. I got a reset/windows reinstallation screen. After an initial setup screen (asking for language, region, etc) and then I was asked to enter Windows "Product Key." I couldn't find this on anywhere (case, adaptor etc). I called a tech support again but she (a different person) repeated that there is no Windows Product key for Surface any more and I am not supposed to get it. She once again talked to her supervisor and told me to skip this and proceed. Everything seemed okay since I finally setup it up even though it did not ask to pair up a pen. Since I kind of finished my process, a tech support person told me that everything is fine. I started installing usual stuff and wanted to change some background. Then I got a message saying that I need to activate my windows. I called a tech support again and I was told that system setup was not properly done so I have to download Surface recovery image and install it. #&R*@&#. Instead of this suggestion, I decided to re-install windows again. This time, I did one thing differently. I clicked "yes" to delete TPM. I don't know whether this was the reason but finally everything worked and got a proper setup process including a pan pairing. Finally I installed all the updates and my software today. After all of these hardships, (knock on woods) I don't seem to have any strange problems reported here with mine yet.