I've been running a DIY model for about a year as well. My only complaint was likewise that installing the wifi antenna was _very_ tricky. I briefly thought I had broken it before it finally came together for me. (It sounds like they've mitigated this issue by now, so that's great.)

I also had a few of the Linux issues that others have mentioned, but upgrading to the newest Ubuntu solved them.

Overall a fantastic machine, and probably my favorite laptop I've ever owned.