I Don't know about the HS part, but with IR trans lot's is possible now.
I am still very optimistic about the Roomba, for me it clean a lot of small dust, if I see the result it's every time... wow still that much dust.
With children its even better, while eating they drop a lot (as you will find/found out

)
Yes and sometimes th Roomba gets stuck, but that is not very often and then you dis not the clean the roomba on time or there was something on the floor a little to big.
Yes you need the get cables etc. away because the roomba will fight with it
My Roomba starts cleaning ant night.
So for me still 5 stars!