Sounds about par for the course!
When I was involved with this product, I used to go to the operator meetings (can't remember what they called them now).
After I had been to a couple, I realised that it was going nowhere - the same issues were discussed time and time again, without any commitment to resolve the problem.
Then I became really alarmed when they brought out an old timer, who told us that all these problems had been around for years, and that fix #15A still hadn't solved the issue, but fix #17B was in the works!
Virtually every problem was along the same lines.
The MRB problems were absolutely horrific, with virtually every blade being returned to the factory numerous times for warranty work.
I still think the most amusing occurence there was a very contentious dispute over MGB gear scuffing, which resulted in gear rejection at every overhaul. There were some discussions about polishing contact surfaces, but they would have none of that. One of the larger MD Helicopter operators, then informed everyone that he had inadvertently discoverd a legitimate solution for the problem. Prior to every MGB reaching 1000 hours TSO or TSR (warranty limit) he would reject the box for "internal noise". This resulted in the box being torn down for inspection, nothing was ever found, except the gears would be noted to be scuffed beyond limits and replaced free of charge!
MDHS had some very good and very conscientious people working for them. Some really took the comapny's inability to provide acceptable service very personally - they hated it and worked so hard to make it better. It just never seemed to get there though - lack of corporate commitment to the product line.
The new owners have made a sincere attempt to improve the product, service and commitment. The biggest problem is overcoming the years of inattention these products received.