Am I the only one who liked the Salvage crew? I felt they were a nice foil to the Doctor and I enjoyed it when the TARDIS was fighting back against their attempted salvage.
I suppose the one thing I liked about the salvage crew was that they were realistic as characters. In a show which normally features humans as either great heroes or dastardly villains, it was nice to see humans more representative of real people: selfish, interested in personal gain (you want us to help you? What's our fee?), engaging in sibling rivalry to the point where one is willing to rob one's own siblings of their birthright (ask any probate judge).
In a way, they remind me of Adam, back in the 2005 episode Dalek
, who tried to profit from his trip to the future.