Unfortunately, no practical experience yet because we are still building, but after much back and forth, we decided on a compass ceramic pool (pre-fabricated pool). The decisive factor for us was the significantly lower price (12k difference) and that the liners in this variant were sometimes already very unattractive in exhibitions (depending on the manufacturer, we also saw great pools with liners) and on inquiry were only 5-7 years old (faded, wavy, etc.). However, if the price had been the same (ask exactly here what the earthworks and concreting cost), I probably would have still decided on the liner variant for the simple reason that I am only 1.58m tall and well.. all the pre-fabricated pools without exception have a depth of 1.50m, but for comfortable standing I would need about 1.30m :) But for 12,000 euros, I will just stand on tiptoe or figure out another way to manage :)