Whilst these are cool and all (flip-tops), I find when bottling that the actual capping part takes about 5 minutes, whereas the filling part takes about 20-30 mins (using 500ml or bigger bottles and a wand), and the priming bucket transfer + sugar boiling + bottle sanitising takes about another half hour.
Allowing for "moving the bottles from one place to another" and "moving beer to my face" it usually takes me about two hours -- 4% of which is me putting caps on things.