LOL@the salvage team. The casting director seriously had an off day.
I was thinking the same thing. Normally I tend to be pretty forgiving about acting quality (I am more interested in plot details) but in this case, ouch. The little girl from The Rings of Akhaten
has more acting ability than all three of this week's guest stars put together.
More generally about the episode, I liked the music, and the few shots of the TARDIS that weren't corridors were cool. The idea that a relatively primitive technological device (the object that Clara picks up) could catastrophically damage a TARDIS that badly strains credulity.
I couldn't help but laugh when the Doctor called Clara "the salvage of a lifetime". I'm sure Clara would love to have heard that.
Even worse, if you put together the Doctor's statements to the salvage crew, "I'm offering you the salvage of a lifetime" and the later clarification that by "the salvage" he didn't mean the ship, but rather Clara . . . let's just say some rather off-colour conclusions could be drawn.