Mussels,
I supply loose cells to many companies and individuals all around the world. How the manufacturer in Austria of the el-cycle uses them in their own custom assembled battery packs with their own wholly designed battery management system is their busuiness and I had no input into. They are an independant manufacturer and are free to choose any brand of cells they like. I can only report on what I have heard back from this manufacturer. If the batteries were junk and were of poor quality then obviously reports would not be good and they would not want to use BMI cells. I have NEVER heard a negative report with regard to the performance of a BMI cell.
As you quite rightly point out there are always positive points as well as negative points about any product. The only negative point concerning the BMI cells and batteries is the higher initial purchase price. I am sure most people understand that any product (no matter what it is) will cost more if it is the highest quality in the market it serves. "Quality costs extra".
For example would anyone really expect a Rolls Royce to cost the same as a Toyota or a Ford?