It was just as easy to install as promised and worked great with significantly improved battery life. Battery charging to avoid running home to recharge. If I don't press the "go home" button on the rumba when the status light turns amber, the rumba continues to work at least half the time until it stops working! I usually stop under something, so I have to crawl to find it. I'm not sure if it's a battery incompatibility or just aging of my device.