Never had problem with UPS. Not the cheapest but good for high value items. Used to like DPD too but after this week - no more for me.
I've mainly used the site for sending high value items like laptops, where the insurance at £8 for £700 cover (something like that) is far cheaper than any other site. The need to have everything in a box for UPS and not with plastic wrap or anything non-cardboard round it is a pain though.
Never using ups again after they measured and weighed my parcel wrong to the point it was nearly double the weight then tried charging me over £60 for delivery after they delivered the item had to send pictures and dimensions proof over to them to prove they got it wrong
Depending on the size and weight you can get it sent via ups to someone's address providing you drop it off at a collection point for £6 Inc vat on upstoday
I'm not sure you can get £6 as that's probably before Vat, I'm still using shutl for dpd or ups as I can't find any cheaper.