A broken spoke in 1200 miles is not a good sign. Either the spoke was defective (or damaged) or the tension was badly off leading to rapid fatigue failure.
As a basis for comparison, I have a front wheel (32H, 3X, Wheelsmith 2/1.8/2 spokes, Mavic CXP33 rim and Campy Chorus hub) built by Wheelsmith that has 52,000 miles (yes 52 Thousand) on it. It is in routine use, still runs perfectly true and has never been touched by a spoke wrench. I also have a pair of Shimano WH-R560 prebuilt wheels. Front is16H radial lacing, bladed straight pull spokes, Shimano 24 mm deep alloy rim and a 105 level hub. Rear is 20H radial DS, 1X NDS, same spokes and rim, 105 level freehub. These both have 34,000 miles with no truing needed and are still in routine use.
My point? Spoke breakage a 1200 miles is WAY too soon and means there was some underlying defect.