They are known to most uneducated smokers as the greatest glass bongs/pieces on earth, but in reality they are just overpriced tubes which cannot easily be replaced if broken. It's a common thing for ROOR owners to claim their piece will get you much higher than any other bong, but this is the unfortunate self-deception that 99.99% of ROOR owners fall victim to. There are much better bongs out there, most of which are in fact far less expensive.
Their logo does look cool and somewhat abstract, which is the only reason people actually buy them. If they distributed the exact same glass without the logo, their sales would plummet.