What do you think of a “Billigrape” Nexen CP661?

I asked my tyre dealer here for 4 summer tyres m. Assembly and coming at 273 €. That’s, I think, a Vredestein 175/65R15 84. ALternatively, I have now looked into the Internet in such a portal and find there a Nexen CP661 for 36.49 incl. shipping. Request with a local assembly partner revealed that there was still 60 € for assembly (on aluminium rims m. balancing) to add. Is of course already a tack cheaper. But should you do that? Greetings Christoph