Most of the key shop prices are worthless. Kinguin shows fee for Poland but doesn’t include 23% VAT. Gg.deals shows price with 0% VAT outside EU where the fee is much higher. Many other “lowest prices” shown on the site are also for the customers outside the EU. If this isn’t encouragement of tax evasion then I’m the pope.
Recently due to this the tool is nearly useless for me. And it was one of the best price comparison sites.