I may only speak for the USA market, and then only from my observation as the person respomsible for processing of defective returns, and as a former USA Arcam retailer myself. Every one pays hard-earned money for Arcam products, and we, Arcam, and our dealers make every effort to satisfy over-stressed and temporarily unhappy owners.
Just as an example, with the introduction of the DV137, there were a host of software-related problems and a shortage of replacement product. So, Arcam, at their (and our) expense, shipped new DV79 as temporary replacements. It didn't keep everyone happy, but it was a good faith effort that I don't recall seeing from other hifi manufacturers in my 25 years as a retailer.
Everyone in the Arcam family whom I have had pleasure to meet is seriously concerned about part delays and unhappy customers. But, Arcam is also doing their best to provide the best value products on the market. That means that they buy parts from a lot of different vendors to get the best price (rather than making nearly all themselves regardless of expense), which occasionally puts them at the mercy of their suppliers regarding delays.
Arcam part failures are on par with industry figures, which does nothing to make the owner of a faulty product happy! What will make Arcam owners happy is to buy from the best dealer they can find, and, before purchasing, ask for their policies should units fail. Most Arcam dealers I know will take care of a customer's problem with total empathy. Please give those dealers your support.