It’s stability due in part to the larger wheels; ease of use to convert to the transport chair, and relatively light weight for your caregiver to lift in and out of vehicles. The folding feature is absolutely great, making it unobtrusive both in the home and when out, as in a restaurant, so it isn’t blocking pathways. Also makes it easier to put in the car. So easy to fold and and unfold!
I haven’t found a single weakness. I absolutely love both my original Nitro Rollator and this new Duet that allows the option to have my caregiver husband push me if I run out of steam when we’re out. I highly recommend both, not only here, but to anyone who asks me about it. I’ve had numerous people comment and want to know about it and where they can find them for their loved ones who need something more stable to support them.
I have advanced osteoporosis with numerous spinal fractures. Even supported walking is difficult, 10-20 min max for walking without sitting a bit.