I recently bought a 20m roll of Gardiner's Ultra Flex to use with my trolley. I have had it for a few weeks now and so far I'm not liking it as much as I'd hoped. I prefer their original green that they don't sell anymore. I'm hoping that will change with a little more use.
The problem I'm having is it's too 'sticky'. I like the flexibility but it just sticks to everything including itself and even the floor. If it gets even the slightest twist in it ties itself in knots. I never found that with the original green stuff.