Just my pennies worth...
I uses Parcel2go all the time as they do discount codes on Facebook....usually opt for TNT. Used them regularlyish on my few items with no trouble on `that other on line bidding site ` ......I joined Ebid and had my first `bulk` buyer......superb, looking forward to the first large sale on here etc........packed well as usual (in my opinion) plenty of bubble wrap, a thick box, packing card and foam filler........the box arrived 2 days late and looked like it had been dropped off the side of a house!! I had no option consciousness wise but to refund the whole lot, so all in all not great. Ive only just started to find some enthusiasm to list again.
Was only a one off but the moral of the story is.....unfortunately......its a little bit down to pot luck!