Is it worth it to try in case of problems with the air mass sensor

Application:
My car was a former Golf IV TDI with 150 PS. This lame at some stage and has simply no longer attracted as strong as I was used to.
I have then identified the mass air flow sensor as the cause after a few failed attempts, the values ​​were significantly understated. I then cleaned it with this product and see because the power was back and the vehicle accelerated well again.

Why this product ?:
I trust in Liqui Moly and use many products of this company. In addition, I read some tips on forums and recessions here.

Price-Performance:
I think the p / l ratio is very good, if it works as in my case one can now at least save the exchange of air mass meter which then ultimately cost me about 150 euros. I have but then replaced him as the problems to some one thousand kilometers occurred again on the application and the car has gradually lost power.

Criticisms:
Has not helped permanently with me.

Conclusion:
I would buy it again because I'm convincing by the quality and it has helped me at least temporarily.