[cowabunga]

My X201 is fine with FreeBSD. in fact the battery life is slightly better than windows 8.1. Hibernate doesn't work so I just shut it down.

Performance isn't an issue really even though its an i5. If it is too slow, I ship the problem elsewhere (the feck off great big 24 core E5 HP Z620 in the office).

Sure there may be 10% difference between BSD and Linux but that's negligible these days versus the positives (like being able to just pkg install ruby21 without having to bugger around with rvm or wait three years for debian to pick it up in stable)