I bought a nifty lift SD 64 after two years of research over 2011 and 2013. I have had the lift now for one year. For me tracks were out of the question. Using tracks means laying out either plywood or mats. Their ground speed is limited to less than half of the Nifty Lift.That increased my time. The benefit of the smaller width on the track machines baffled me for a while. I was hesitant to buy the Nifty Lift (80 inch with). I have found the lift gets me into a lot more places then I would have thought. Sandune's, over septic tanks, over yards with sod All summer long, over patio paving, 2 inch concrete sidewalks, Groundcovers tennis courts etc. etc. I used to own a 2009F 750 with a 65 foot aerial lift. This nifty lift gets me to places I would have never dreamed of taking that bucket truck. We used it here in Michigan last winter and we're driving through 4 feet of snow no problem. No more plowing peoples yards

. I also wanted a lift that I could be in along with the operator so that I could do some training. That was before I bought rope tec. However the large size of the basket I enjoy. For the record I will also claim this could be an issue with other people/preferences. For the requirements I laid out this lift more than exceeds my expectations. However those were my requirements.
This lift weights 9000 pounds and a trailer hauling this lift will require a CDL in the us. You may be able to build a custom trailer and keep under the 10,000 pound limit.
This lift is not insulated.
Issues
The service for Nifty Lift is not good. My closest dealer is a rental center in Kalamazoo. Their service was horrible.
Employee backed the lift into a brand-new Lexus of my clients. lexis sustained $4000 of damage and the lift mounting bracket underneath the cage bent. $300 replacement part. I thought their parts were very expensive. The first winter was extremely cold and we spent a lot of time tightening hydraulic connections leaking . Now one of the hydraulic hoses underneath has developed a leak due to an extreme bend radius when rotating lift. It does have a lot of electronics over hydraulics and that concerns me but I believe it is a design necessity. So far The only electronics problem was a joystick that was easily fixed by myself with a free Warranty joystick. FYI joystick cost $1000
Summary:
Overall the lift has outperformed the expectations I had of it. It has been a fantastic machine. I see the ground speed, turf tires, high ground clearance and 4 x 4 x4 as a huge advantage over tracked lifts. The versatility of this machine in comparison to track machines far out weighs any issues I've had with it.