I actually swapped my MK5 GT TDI for the Scirocco (still a 140ps Oil burner), and yes Fred, I know what you are saying, it was just a Golf in another set of clothes, but it actually did feel very different and quite special compared to the MK5 it was based on. The boot was surprisingly huge for a coupe and yes, getting in the back wasn't the easiest (although to be fair no worse than a 3 door Golf of the time), but could easily swallow 4 adults in decent comfort.
Big problem in later years with the Rocco, was that VW never really updated it. The running gear, most of the electrics etc were still MK5 Golf based when it went out of production a few years back. If VW would have made a new version with the MK7 underpinnings (MQB) and the vastly updated electronics and safety systems of the later car, I think it would still sell well today. Back in the day when I bought mine, according to my dealer, it pretty much killed off the 3 door Golf in terms of their sales (at least this particular dealer), and only those that wanted 5 doors actually ordered a Golf. Strange but true.