I just replaced my roomba i7+ with a RoboRockS6MaxV; No regrets as the battery life of the Roomba was terrible and the fact that it couldn't operate at night was laughable. That said, i do miss the automatic dust bin emptying system that the i7+ had. It was awesome. I think that if RoboRock had such a system, they could win the robot vacuum wars.
This is all I'm waiting for. As soon as they have auto emtypy I will probably buy 2. Maybe they can't due to the mop. But I would trade a mop for auto empty any day.
https://www.kickstarter.com/projects/neabot/neabot-robot-vacuum-your-hands-free-vacuuming-solution?ref=4i1h48&utm_source=review&utm_medium=zdnet&utm_campaign=KS