It is very interesting, because my experience as a sender is that Hermes delivers.
Sent over 400 items with hermes over the last 12 months, not one was lost. About a dozen or so were delayed, one delivered to the wrong address.
I have made very bad experience with royal mail, on the other hand, and no longer use them, unless I must.
You do need to package things well, though, as they don’t treat parcels well, but that’s true for most…
What I would say, though, is that I’m proactive with them: i keep an eye on the tracking, and where things are delayed I proactively open a case with them before the customer even complains. Usually the item is found within a couple of days afterwards, and usually still delivered before the customer complains.