From the product page:
This is one of those mythical plugins that makes things sound better just by plugging it in. Really. Unlike 1973, which is a very pristine EQ plugin (but a VERY good EQ, all the same), Vibe-EQ is all about color. The more boost or cut you dial in, the more color and funk you get. This may not be your go-to EQ every time, but you’ll wind up using it more often than you’d expect.
vibeEQ costs $39 USD. A REAPER-only, non-commercial use license is available for $25 USD.