HUL Pureit is a good but a very basic water purifier.
It has multi layer filtaration but it does not purifies the water to that extent.
There are many other brands that manufacture gravity based filter. They are better than PureIt.
The charcoal filter is of low quality and often gets mixed with the purified water.
It is unable to purify the water from boring well that leads to acidity and other health problems.
The water filter kit is easily available but cost around 500.
Installation of the filter is easy and washing is also easy.
In some areas it does it work but in some area where the quality of water is poor, it fails to purify the water.
In my opinion it is good for basic purification.
Eureka Forbes Aquasure is a better option which cost you the same.