Review Date July 23, 2012  iRobot Roomba 790 Vacuum Cleaning
Robot    • Pros     • Cons Very expensive. Can get tripped up on
wires.   • Bottom Line   By Alex Colon  Other Roombas in the 700
series come with remotes, but those are IR blasters that require
you to point it directly at the vacuum, and don't offer nearly
as much control.   Though it comes with accessories aplenty,
setting up the Roomba 790 is simple. First plug in the charging
station and place it against a wall. The front of the Roomba
needs to line up and nestle onto the dock for it to work. It
takes about three hours to get a full charge, and upon first
run, the Roomba spent about an hour vacuuming my 450-square foot
apartment.  Performance and Conclusions The Roomba 790 uses
iRobot's Dirt Detect Series 2 technology, which utilizes an
acoustic sensor to detect small and hard debris, like sand, and
an optical sensor to detect large and soft debris, like popcorn.
Persistent pass cleaning allows the Roomba to use a repeated
back and forth motion