Are the unauthorised 3rd party tetra jets worth getting?

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Originally Posted by Ozgardian

Is the 3rd party trns Tetra squadron set of 7 worth getting?

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I have a few, I've opened one. the quality is a little knaff, but they look good as the Tetra Jets. If you can find one or two on clearance somewhere it might be worth your while but they are nothing spectacular. The instructions are especially horrible.