I’ve been using highlighters ever since they were first on sale, and can tell you that Stabilo are definitely the best. They have an intense colour, and last far longer than any other brand.
Before I bought my latest Stabilo highlighters on line, I couldn’t find them in the shops, so tried out several other brands, and they were all really inferior. They all dried up in a short time, and none of them had the lovely intense colour of Stabilo.
I honestly think they’re a perfect product, and though they’re not cheap, they’re excellent value for money.