I was reluctant to buy this item because of the previous review. But I gave it a try, and it worked perfectly for me. 5 lines were interrupted and I fixed them all with about 30 min work and some patience. The only additional tools you need are a sticky tape, some kitchen paper roll and additional alcohol, as the one in the box is very little. The application is quite easy, once you placed the tape correctly. The applicator is a simple wooden stick, but it does the job.
In summary, could have been a better kit, but nonetheless it works perfectly.