Thanks for your reply Nancy. I can barely straighten the house, let alone push a vacuum. Many days, I'm on the couch pushing buttons on the TV remote. It's going to take more time to heal than my floors can stand.

I was interested most in the remote to steer. I don't plan on walking behind the roomba the whole time with the remote, but there are dry spills or quick mess clean ups that I'd like to do quickly instead of having the roomba take forever to get to them on a normal round. Will the remote work well enough for that?
I'm interested in the scheduling, as I'd like it to run downstairs while I'm asleep upstairs, turning itself on automatically 3 or so times a week to sweep. How is the noise factor? Will I be able to hear it running in that distance? I also like the idea of the lighthouses, but not sure if it's really necessary. That's why I was asking about them here. Would love input on how useful the lighthouses are/are not for you and others.
I am not a member of Costco, but maybe a friend might be so can purchase it for me. I was going to use a coupon at irobot.com or possibly the hammer schlemmer website for the lifetime warranty.
Thanks again for your reply,
Gina