iRobot Roomba Discovery SE Robotic Cleaner

The Roomba is a Dumba. I bought this for my hubby for his birthday as he does all the housework. We have 2 dogs and 4 cats and a doggy door. I am a veterinarian! The Roomba arrived and we charged the little bugger. After setting it up, off it went. Bumping and vac-ing. We set up the door sensors and it seemed to be doing great. The next morning, it was gone. We searched....It was under one of our 2 Lazy Boy Movie Theater recliners. Poor thing, it was exhausted from trying to rescue itself. Ok. Recharge. Set limitation to kitchen. We have an island that has large ball feet and an industrial, stainless stove that is on feet. Once again, next morn, poor Roomba, trapped under the stove. We went through scenarios like this for about 3 weeks. Finally, when it traversed an elevated threshold and I found it out on the screened in porch after 2 days of hunting all of its usual traps, it was time for the Roomba to go home. Roomba cleans well. The little tray was always full of stuff like dog hair and such but it just doesn't learn. I sent it back to the company with an explaination similar to this and they refunded the full amount. I told them, when you get the Roomba to LEARN an environment, let me know. I will buy it again!