Just finished installing the new Dometic 301 Porcelain bowl toilet, KES shower head, and handheld bidet in our Tab 400. The shower head has a much improved weight and feel while the bidet is solid chrome plated brass. Installation included a bypass valve so either the shower or bidet can be used independently from the shower mixing valve. The bidet will save a lot of toilet paper going into the black tank. The toilet bowl and seat are somewhat larger than the factory toilet seat so that alone should improve our experience. Really looking forward to trying them out in early December.