I purchased this unit as a replacement for the same item that had suffered broken hinges. The hinge design of the new unit seems to have been made more robust so I am hoping that this will survive longer.
The packaging was inadequate in that it was posted to me by the retailer in the manufacturer's carton that was not robust enough to withstand processing by the Post Office and was delivered with a large indentation. Luckily despite this, the plastic Geberit flush plate had survived and was undamaged.
I feel that the RRP for this product is very high (about £80 depending on where you buy it from). £40 would be more reasonable given what it is, but I guess that the price may be justified by an extremely complex engineering and manufacturing process.