Hahahaha.... it really works.
Use this test to get an estimate of your Elo rating !

I got 1505 Elo and im 600 rating, but it says that the rating on chess.com is 200-300 more than your elo :_)
This thing is clearly VERY INACCURATE. My ELO is 1371 but it shows 1790??? And, I didnt even use 5 mins. I only used up some 2-3 mins.
Ohhhh thanks