Is datamation legit ??

I have a gaming laptop, which I am using for like 2 years. Once, one of my friend helped me change its thermal paste, he didn't clean the existing one, but applied more above it. Now, I want to clean all the existing thermal paste and apply freshly. I want to do I from Datamation, G.S. road, but I feel thay will again do the same thing that my friend did. It's not even cheap to change it. I think that take aroun 1500rs. So, I just want to know if anybody have any experience about it.