"Jumper" is one of my all-time favorites -- fun, funny, exciting, and witty. "Reflex" is also outstanding, but quite a bit more intense -- I had plenty of nightmares working through that first sequel. "Impulse" is closer to the mood of the original -- echoes of the terror of the second book are hinted at here, but they don't dominate the mood.
The story picks up about 17 years after the events described in "Reflex". This gives time for Milly & Dave's daughter to grow up to about the age that Davy was at the beginning of "Jumper". Gould's portrayal of the family's interactions is just what I had hoped for -- the banter is witty & a bit nerdy and the characters' mistakes are painful but not beyond the healing power of the love & respect that provide the family's foundation.
If you like Steven Gould's style, a completely unrelated story with a similar feel is "Wildside" -- another of my all-time favorites.