In my experience the vast majority of those who criticise Robinsons couldn't afford to buy one themselves - they're usually flying somebody else's kit instead. However, unless these people are complete snobs, that shouldn't influence their views on what makes a 'great' helicopter.
As a Robbie owner, I agree they are damn ugly, sound agricultural and have the bare minimum of equipment. On the other hand, they are good value for money, very reliable, reasonably fast and economical. In the right hands, they are also very safe. A large number of incidents involving type (which are not disproportionately high) are due inexperienced or foolish pilots.
'Great' is very subjective, so I wouldn't necessarily agree that even Bell's 47 is 'great', nor is a huey - despite the emotional attachment from times when people's lives depended on these machines. The Robbies are aimed at a certain market - and Frank has executed brilliantly in penetrating that market with a product that has soundly beaten its competition. Great job.