While there may be less jobs, the economy has grown larger than it was in 2007 in inflation-adjusted dollars.
Inflation adjusted gross domestic product of the U.S. (Chart & Graph)
Same info. shown as a [faint] white line graph: US Real GDP
The growth, from looking at this chart, seems to have been substantial. However, looking at the numbers, the growth is anemic. It also does not take into account how much of the economy is public vs. private sector growth. An incredible amount of the growth has been in the federal government, which does not really grow the economy, it just take dollars out of where investment makes a difference.