Reviewers mostly say Sutro makes pool care easier by replacing guesswork with regular phone alerts and readings for pH, free chlorine, and alkalinity. Many call the readings accurate and reliable, praise the liquid-reagent approach, and say it helps them manage chemicals remotely or while away. Customer support is often described as strong, though one detailed review sharply disagrees, citing cartridge failures, pairing trouble, and a drawn-out refund and warranty dispute. A few users also note limits, including setup time, cartridge dependence, and less value for spa use.
