Not surprised
Some years back I bought a discovery and found it virtually useless (for me). The brush on the bottom of the device has the tendency to wind up everything that's lying around.
In some rooms I could still use it when I put the carpet fringes underneath the carpet, but wherever it finds wires it just pulls them in and jams. Unfortunately I tend to have a lot of wires lying around, so to make a room "roomba ready", took more time than just cleaning it conventionally.
That said, it is still a nice toy and I don't regret buying it. Not so much because it is useful, but more for the fun.
Biting the hand that feeds IT
