I actually spat my drink out there!!
DPD are the worst, the only delivery service that has consistently failed to deliver parcels. They mark the parcel as a failed delivery even when they've never visited the property. I'm guessing they are given too many parcels in a round to cut costs??
Hermes are ok, lot's of eBay sellers use them and they are quite quick tbf.
I don't get the hate for RM, they are reliable, the tracking system is decent, just a bit on the slow side.
Their tracking is on par with DHL and FedEx tbh.
The cheapest delivery option of second class parcel doesn't provide tracking, but the next level up does (Tracked 48) lots of eBay sellers use the later option anyway.
I think it depends on the area tbh. Here, DPD are decent and the local Hermes courier is reliable. The only one I've had any issues with is Yodel, who I won't be using again after they damaged my parcel when it was in transit.
You're absolutely spot on about Royal Mail, who I've been using for years (as sender and recipient) without any trouble whatsoever. I genuinely can't understand the fuss over not having a "your parcel is out for delivery" notification after receiving one when the postman/woman has scanned it before leaving the depot for their delivery rounds.