It does say not to move it about with a bike on but I have with my Honda and my Puch moped but not the Burger. Yet! It has two fixed wheels and two castors with two lock-down screws next to them that lifts the castors off the floor so that it can't move when loading a bike onto it.
A couple of faults; Firstly, its quite high when fully lowered and my exhaust juuuust scraped when going up on it. Also, it seems to be built for motorbikes and not scoters (well, Burgmans at least) because the cut-out for the rear wheel is where the centre stand is (I'm assuming scooters have the centre stand more towards the rear than a m/cycle). Another fault is that with the weight of the Burger on the removable rear wheel cut-out, the cut-out flexes quite badly. Obviously, with the front wheel clamped, you cannot use the centre stand normally as the scooter needs to go back as it goes up. I got over these problems by permanently welding the removable plate in position. When loading, I rode the scoot on and clamped the front wheel. It would then stand up on its own albeit a bit wobbly due mainly to the weight of the sooter. Then, with the table up in the air and with someone holding the rear of the scoot steady, I jacked it up using a small trolley jack just enough to be able to flip the centre stand down and then lowered the scoot down onto the stand. I have got some ratchet straps coming to be on the safe side but i think they will only be needed on a bike when you are not using the centre stand and just have the front wheel clamped.
Bike and lift surprisingly stable in use although for scoots as big as a Burger I'd recommend having a helper present when loading and unloading. I did load the Burger on it myself with no helper as soon as I got it out of the crate, but as you are about 8" off the ground with very little space to put your feet down (I stood in the step through and walked up as I rode it on) it can bee a bit scary. I had 4 car tyres stacked either side in case I dropped it.
It is a very useful tool to have and as we are thinking of working on go-karts in our training centre, it will be handy for them too. Might even get another one!