Bathroom being done and getting an electric shower ( needs to be electric). Will be used each morning by me and the kids. Choosing between Mira Sport Max Airboost 10.8kw , Mira Sport 10.8kw or Aqualisa Quartz 10.5kw. Does anyone have one of these? I want good reliability. Reviews on Airboost Mira - some love the boost button, some think it's just noisy . I always think the more buttons there are the more can go wrong! So maybe the standard Sport is better? The Aqualisa has some goodreviews and is very simple to work. This one is not on the high street so doesn't seem as popular.