We bought this product in March 2014 after an extensive survey of Kent and Aquaguard products. Decided on this because we heard good things about it and also the dimensions of this were perfect for the area that we had in our kitchen and any other model would have required modifications to our kitchen. It fit our budget of~16k as well. Our house water had a TDS of about 650.
We do not regret the decision at all. It has been running now for about 5 months now and I must say, it has performed well. TDS is under 50 now and there are no problems that we have faced.
Some negatives:
The Aquaguard rep promised us a solar bulb free with the unit. That never arrived.
After installation, there was an issue with the tap. It did not latch on to the ON position. However, the plumber who came for installation fixed it then and there.
Attaching a photo of the installed unit at home. I would recommend it to anyone looking for a RO unit in this budget.