They have a product that integrates with many exchanges and makes it easy to produce those 2 lines of csv. I tracked it myself and it took me a few hours. Just logged into CoinTracker and it took me about 10 minutes to do the same amount of work. It is worth $50 to me!

That said, it isn't perfect. I marked several transactions as transfers but it didn't change my cap gains numbers. I added it up manually and the numbers don't seem to add up. Then I checked back later and looks like those numbers are updated later. But why? And by how much time?