There are first class awards that are tough to book with miles through a partner program, like Qantas first, Qatar first, Etihad first, etc. Then there are awards that are generally impossible to book with miles through a partner program, like Air France first and Swiss first.
Back in the day Swiss was one of the most generous airlines out there when it came to releasing first class award space, and I remember many instances where they made all eight first class seats available as awards. That’s why I had reviewed them a few times several years ago.
Unfortunately that changed in 2013, when Swiss added a restriction to first class redemptions. As of 2013, only elite members in the Miles & More program can redeem miles for Swiss first class. However, back in June of this year there was a brief period where Swiss first class became bookable with partner miles. I’m not sure how or why this happened, though it did, and it allowed me to fly Swiss first class from Zurich to Los Angeles last month.