Purchased and installed the water level switch kit. Watched the on-site repair video several times, then with laptop nearby went through the repair step by step. Even vacuumed under the washer while it was pulled out. The only problem was not kit related; the video shows the repair in a spacious studio while the actual repair was in a cramped laundry room. Your contortions may vary.
Be sure to gather your tools before hand and have them within reach. Wear gloves, metal flanges can can hang out where you can't see them.