I'm generally not enthusiastic about one instrument-per-part baroque works, so I ordered this with some trepidation. In short, I loved it. Wonderfully warmly recorded, just about everything is right, the phrasing, the tempi. The only problems are, as nearly always in the Brandenburgs, the occasional slight misstep in the trumpet part of No.2, but then we are talking about one of the most wickedly difficult trumpet parts ever written, and David Blackadder generally does a superb job. These are performed at a slightly lower pitch than normal, but that changed nothing for me.
My favourite Brandenburgs have always been the modern instrument version by Nev Marriner and the ASMF, with all-star cast (Heinz Holliger, Michala Petri, George Malcolm, Jean-Pierre Rampal). Suddenly, I'm not so sure any more. These are that good. Arise, go forth and buy...now.