Same here, I have my harmony connected to my i life, it is a little wonky in that when it turn on the vacuum it turns off the tv and cable, I need to look into it.
I say the ilife series are your best bet though.
i didn't buy a brand-name roomba - i bought an "ILIFE" brand wet-dry. It has been quieter and just as good as the roomba i previously owned. it was MUCH more affordable than what you are considering, even after the primeday discount. Just something to consider. this is the model I bought.