I was able to book two QR flights this evening (WAW-DOH-SFO) on the B6 website without too much trouble. I do think it is silly B6 doesn't offer an edit button to easily change destinations during the search process, though I found simply changing the from/to airport codes in the URL did the trick.

Flight wise, it was 116K TrueBlue points, though I've found no other use for them thus far. I transferred some in from UR to cover the difference between what I had in my account already (they appeared within a minute or two) and taxes were only $76.80. Not a bad redemption when the revenue flights are $7,500~ and it included 16hrs in Q Suites on the A35K! The ticket took one-two minutes to process and then it immediately appeared on the QR website and I had no issues selecting seats and filling out my APS information.