I am surprised that anyone could give these robots a poor rating, (regardless of their "experience and education!) Bee Bots have been popular in schools for years, and these are pretty much an advanced version of them. They do everything a bee-bot can do, but also can sense different images, talk and give feedback, and have the ability to record sounds. They can also read music and you can add Lego Duplo! They also show progress of steps taken in a colourful LED display. You can add different attachments and even get them to draw.
The mats are intuitive and interesting. And if you have an ounce of creativity, you can come up with your own designs and challenges. Seriously... if people are critical of these robots they don't understand the targeted age-group. I recommend these robots on my YouTube Channel @robot_man