I am using this purifier from past 3 years and happy with it. Product is sturdy and really lasts long. It has a 8 liter tank which would suffice for family of 4-5. Anyways booster pump will pump the water very fast so tank capacity should not be of that much concern.
I tested this water and definitely stays up to its expectation.
Remember this doesn’t have a uv treatment. it has ro alone.
Pros: Servicing is good. qulaity of product is good.
Cons: bit over priced. Aroub 8k would be fine but unfortunately costs us 12k. Maintenance will be bit expensive.