Information is correct, but I am not surprised at all (most of that info can be retrieved from php headers, the IP-based info does not show any proof of weird accuracy).
It's not a website to surprise you at all, we just want to let you know what information can be retrieved from your IP address and your browser headers
I got creapied out when a site told me what city I am in, then I clicked the coordinates and it was a few kilometers away of my house... what is the most accurate site right now tracking your location? (of course no site will tell my exact location, just wondering which one gets it closer) Some sites are so lost that they place me in our capital city

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Edit: I had not noticed the link to the map, you are one of those inaccurate sites

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Because it's not your IP, it's your ISP IP