I recently read a SeekingAlpha article on IROBOT
(link attached below). The author mentions the reviews on Amazon about the positive feedback on IRobot's new product. At first, this "indicator" could easily be overlooked, but a product that is loved as much as theirs is usually a strong indicator of future success.
See link for reviews on their product: http://www.amazon.com/s/ref%3Dnb_sb_ss_c_0_6?url=search-alias%3Dgarden&field-keywords=irobot&sprefix=irobot%2Caps%2C524
Here's a solid argument defending the fundamentals of the company: