I had a roomba a couple of years ago. It was not too long after they came out, maybe it was a 2nd generation one

My boyfriend got it for me for christmas, and I think it worked 3 times.....then it died. He didn't keep the receipt

so we had a big (almost $400) paperweight. It would have been too much to get it fixed, so we threw it out. I am sure they are fine now, but I can't bring myself to buy another one after that. It worked great those 3 times though