The iRobot 560 Roomba Vacuuming Robot is the best investment I have made in a long time. I questioned the Roomba when it first came out, and yes, it did have a few flaws that needed to be ironed out.  They have taken care of these flaws when they created the new 560 model. 

The iRobot 560 Roomba has some new cool features, one being the sensor to large objects.  As it approaches an object, unlike the older version, it will slow down so it will touch the object gently.  The older model would have hit it then turned around. 

The Roomba 560 will let you know when it is full, which was a huge drawback with the old model.  I had to check the older version as it would keep going even when it was full.  This model will actually stop, letting you know that the brushes need cleaning or the it's full.  This is a great feature for those who procrastinate cleaning out the bin.

The iRobot 560 Roomba Vacuuming Robot uses a "lighthouse" system.  This is a way to section off rooms, or marking a room for the Roomba to fully clean before going on to another room.

It will clean 3 average sized rooms on one charge, including  getting underneath all the furniture.  The first time you use it, it may need to be emptied a bit sooner, as did mine.  It was getting dust that I had neglected underneath things, making it fill up faster.

The iRobot 560 Roomba is totally worth the investment, saving you so much time, and providing clean carpet all the time. All you need to worry about is cleaning it out when full, which will take you all of 2 minutes.