I actually have a Roberston Acoustic guitar from Robbie's music city in Wayne, NJ. From what I understand Rob had a few guitars made up decades ago.   I have not played it for about 15 years and indeed have to get some maintenance performed (fretwork, bridge repair and tuner replacement probably). But I think it is a beautifully balanced tonality and pleasant sounding. Does not sound tinny and does not feel 'cheap'. It's a heavy guitar with a long rose stem inlaid in mother of pearl on the fret board. I will send picture later if you'd like.