Buy iRobot Roomba 530 or 630? Which is better and what’s the difference between these 2 robotic vacuums?

Here are some difference between them:

Roomba 530 VS. 630
images from manufacturer

• According to users’ reviews, the Roomba 630 is quieter than the 530.
• The 630 comes with only 1 virtual wall whereas 530 comes with 2.
• The home base of Roomba 630 is not as weighty as the base of 530, sometimes the 630 might end up pushing the docking station while trying to return to dock and recharge itself.
• The 630 features the AeroVac and improved brush system, which makes it does not have that much annoying problem with hair wrapping around the brushes like the 530. It is easier to remove the hair, and you don’t have to spend a lot of time pulling out hair from the brushes.
• The dust bin of 630 has 1 compartment while the 530 has 2.
• The 630 cross thresholds better than the 530.
• The 630 features the iAdapt Responsive Cleaning Technology which helps clean your floors more thoroughly, while the 530 does not have this feature.

Do you know more difference? Please share your review by commenting below.