It is hard to describe Sergey's skills without sounding exaggerated. Simply put, Sergey is a wizard with data manipulation and visualization. His output blew my mind. I didn't envisage his approach was possible. To cap it off, he was super and very communicative all through. I wish I could monopolise his services. He is highly recommended. And i would definitely be working with him again.

Great process to work with Sergey. Will certainly use again for Excel Project.

Will work with again. great comms. great job. really happy.