It is the only system I found on the market that gives 5in1 treatment. Spoke to Will & he was very knowledgable & pointed out things other companies missed. Tomass fitted the system & he was very friendly, efficient & tidy. He explained everything very well. Only downside is the pressure from the tap connected to the reverse osmosis system is very low compared to the other taps so it takes a bit of time to fill a kettle, pot etc. I was aware of this from other people who had water systems installed. The water passed the lab test post installation. The water is crystal clear, odourless & has no taste so a job well done. Had no issues with the company at all & I highly commend Will & Tomass.