I wouldn’t call that retro design exactly. It looks like a mix of old html style and modern flat design to me. That said, “non-pretty” can work well for users.

I wouldn’t call that retro design exactly. It looks like a mix of old html style and modern flat design to me. That said, “non-pretty” can work well for users. Look at Craigslist. Or various image boards. The cities concept is interesting