This was an amazing purchase for me. The table saw and robotic dust collector work well independently, but apparently I had to turn them on manually. Of course, this isn't a difficult task, but I've often connected the dust tube to the saw only to turn the saw on later, and forgot to turn on the vacuum first. Or, if I got it right, I mostly just left the vacuum cleaner on while I prepared for the next cut, adjustment, encryption, etc. Extra noise and energy. This simple device has really helped me collect dust much more efficiently and reduce system uptime. Works perfectly every time. Simple solution to a potentially stupid situation for me, but hey, I'm old. Definitely recommend it. I have no cons to mention the product.