Good service service should be the norm from any vendor. If there has been any variance below or way above that, sharing that experience is useful to future users of that service, forewarned is forearmed, etc. My last purchase from GG in Edinburgh, for instance, was a very good experience, where I received a much higher trade in value than I had anticipated and I shall use them again (they’re not my nearest retailer) when a certain item comes into stock.