Holy amazing. They did a version that reverted back to 1741 and used only period instruments and a relatively small orchestra and Choir as Handel had actually used. Combine that with the stunning venue that is the National Cathedral and it was simply heavenly. It lasted just under 3 hours and I was spellbound the entire time.
Absolutely incredible. If you have the opportunity to go, take it. They typically do it the first weekend in December every year.