I have both knives. The RAT 1 is a better slicer and has a better feel in the hand.......and the Enlan el01 is a much more beefy knife when you compare them side by side, the Enlan el01 also has a beefier liner lock and the tip of the blade is more strong than the RAT 1.
Honestly I like Enlan el01 more than the RAT 1......both are good folders though.
The RAT 1 was one of the sharpest knives I ever had when it was fresh out of the box and Enlan el01 didn't come with a factory edge as good as the RAT 1.
if you are willing to spend up to 40 dollars you should really consider getting the Cold Steel Voyager in AUS 8 before they become discontinued and hard to find because of the upgraded steel they are using now on the Voyagers.