Energy use appears lower based on my recent bills. The unit primed quickly and ran smoothly first go. Build quality feels premium with solid fittings and seals. Delivery was quick and packaging protected everything well. Support pages and parts diagrams on the site were helpful. Flow rate improved straight away. Performance has been consistent and noticeably better than my old unit. Quiet overnight cycles are a huge bonus. Halo parts matched my system perfectly. Great value for money compared to local retail quotes. The unions lined up perfectly and plumbing was simple.