the rumba does a great job, but it start to malfunction afert just 5 mouths we start to use...don't you think it is a little to expensive for 6 mouths? We bought the roomba in November of 08 because was on sale for 25 off, but we star to use it just inSep. 09 cause my husband is in the military and lived outside the contry( desert) and I went to stay with my old parets in italy. read full review »