Hey Vova!
From the parts description you've given the Atom looks very much like a basic FUJI Track bike. There is nothing wrong with that, especially the price, but honestly I DIG your bike! If there is nothing wrong with it, stick with that man!
**EDIT**
As per the post below from BOSTONTREVOR. Bikeophile had his head very far up his own butt while making the original comments comparing the ATOM and the FUJI. These bikes have 2 wheels and are track bikes...THAT they have in common, but not much else
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But hey I know all about the need for more bikes...Heck I have a dozen frames in my 800 square foot condo right now and my track bike is in the bedroom beside my dresser!
Anyways, ride safe and Happy New Year!!
Rob