I purchased Racold Altro 2 plus water heater after doing some browsing and reading many reviews.
I found it is good. I have used it for more than 2 years now and still the geyser works good. No complaints so far. Heating time is also reasonable inspite of hard water at my place.
I had to go through lot of product reviews while deciding the geyser for me.
So, just wanted to share my view for those who want to buy.
All the best.