I am using AQUAGUARD from previous three years & I can say that it is a good water purifier, beside the high cost of maintenance/replacing its old filters.
It has many features like automated settings of TDS controller, alarms for replacing old filters & transparent water indicator etc. Aquaguard is a world known brand today known for its high quality, purity & healthy water.
The service technicians of Aquaguard are also very good & they provide full support to customer in time of need. I take regular service from them in 6 months period time & I did not need to call them in between this period due to any other issue with the purifier. Overall its a good product, but at a slighter higher price.
I dont have any complaint with it at any time in previous three years. The body is just as new as it was three years ago when I purchased it. but I still think that I have to replace it, because of the technological advancements in water purifiers recently.