Robinsons are cheaply constructed, but that doesn't necessarily make them dangerous if flown within limits, or they would never have got any approvals. You could argue the Bell 47 and Alouette were cheaply constructed, but they were aimed at a particular role/market sector and were very successful as a result. Robinson has historically been extremely successful in its penetration of a specific market sector, where affordability was high on the list of decision points.
However, it's now aiming at a different sector: the $1m turbine market where prospects are more discerning, demanding and have more choice; high in their decision criteria lies value for money. Why buy a brand new Skoda if you can buy an immaculate 4 year old Jaguar for the same money? Personally, I wouldn't touch the (very ugly indeed) R66 with a barge pole, but only because I know I can get a far more 'robust' and proven helicopter for the same money elsewhere.