The sealing tape also minor irregularities can be compensated, the area should only be dry and clean. In addition, the tape can paint over, due to the whitish-transparent color that was in the gutter but not absolutely necessary.
I would recommend the sealing tape with a clear conscience recommend it and hope that we the result is retained even in the long term. Should not be the case, I will update the review course. About the price can be discussed, if it actually holds in the long term which establishes promises, I am willing to pay the price, so for the time being good 4 stars.