Ispring ispring water purifier in the end is good or not

This water purifier is a brand in the United States, in the United States Amazon sales seem to be still the first place. There is NSF 58 reverse osmosis membrane effect of the certification, and WQA (American Water Quality Association) Gold Seal certification. Individuals have been using more than 1 year, the water purification effect is very good, the after-sales service is also guaranteed, will remind you from time to time to replace the filter cartridge.