A:AnswerMine has had very little problem with the long fringe on my area rug. A couple times it has caught for just a moment, but then gotten clean with no problem. If anything, the fringe on my rug is cleaner than usual.
A:AnswerHello DLMS,
The maximum height of a threshold that all Roomba models can transition over, when performing a cleaning cycle, is ⅝ in (1.6 cm), so if the nap is higher than that the robot will have a hard time transitioning. We do have Keep-Out zones and virtual walls to counteract situations like these, but with most carpets the robot will be able to transition.
A:AnswerIt depends on the job.
Surface, square footage, etc. play a big role. If used solely on hard floors it wont run the motors as hard compared to carpet. So more run time.