I did the exact same process as the previous ones who wrote with all the attention it needed, and it came off the next day. Disappointment

I installed the product in two showers and I am very satisfied for a week now. I see many negative comments about it coming off.
1st, the surfaces need to be cleaned well with alcohol to avoid dust and grease.
2nd, the surfaces need a little warming with a hairdryer for the adhesive to soften and stick, and once installed, the entire tape needs to be warmed again and pressed well for the adhesive to grip.
The tiles and porcelain are cold objects and harden the glue, preventing it from spreading and gripping, which is why warming is necessary.
Update 03/08/24.
Honestly, I haven't encountered any problems so far.

My first thought was "well, they have no shame selling such a product." As a material, it is good, it doesn't cut easily, but the glue is terrible!!! The next day, it had come off from everywhere...

Although a well-known product, completely useless. It came off the next day after application without even getting wet...

One of the most failed purchases I have made...
It seems like a good solution with the seal of a reputable company BUT:
I followed the instructions, cleaned it very well, dried the area with a hairdryer, and applied it.
Firstly, in the corners, it simply doesn't "stick" properly, it bends and comes off.
Secondly, on straight surfaces, it adhered well when heated, but the next day (before the 24-hour period without water had passed) I touched it... again with the hairdryer, etc... and it was the same story.
Unfortunately, it is a failure and it is expensive. It's better to use silicone caulk.