EcoWater Systems

Good experience overall. Main thing I can say is that they are knowledgeable and know their business. You get what you pay for in the end, and as long as you provide clear idea of what you are trying to achieve they will offer a good solution for it.
I would recommend, specifically if you run a busy restaurant.

Charged an inflated price to buy-back a water heater that was rented from them. Decided not to renew my contract and they came to remove the unit, taking not only the unit but the pump, valve and all the piping - some of this was not theirs to remove. Came off as extremely unprofessional and fairly petty. My service with them during the rental period (paying 42/mo) was fine (hence a lower rating is not given) but when you want to leave they'll show their true colors.

Staffs are always willing help. They offer extra hand when my mom went to buy the salt and they will put them on our car. We always feel welcome. They are not hard sale on their products but always introduce things which are suitable for us.