I read a lot of bad reviews and I got their point. However for me this place was absolutely incredible. It really depends on your point of view and on what you are looking for.
The place is full of people selling very ugly stuffs and of pilgrims that go there with small children or old people to wash their body with this holy water that is believed to have medical proprieties.
The point is that this is a place for Sri Lankan people that are however very kind with rare foreigners (me and my partner were the only two).
What I did was to enter the place and wait till a kind woman gave me the bucket that they use to collect the hot water.
Than I put the water on me as they were doing and give the bucket to someone else.
All these people are there with their families doing this ritual every day and for me be a part of it was amazing.
But of course I do understand different opinions.