I only used Uship as it seemed a more cost effective use of my time in avoiding a round trip of 5 hours.
The whole process is pain free and I used the Iphone app to book the bid I was happy with.
I don't think I went with the cheapest bid, it was the highest feedback in the lower bids that I chose.
All in all, I will use uship again if I buy anything large/over 2 hours away as after calculating fuel costs it seems to work out that for a small fee you can stay at home and watch a couple of films while someone else deals with the rubbish UK traffic.