The light green hose is different to the older (5.5mm) green PU Hose. It is a slightly thicker wall and is a more flexible formulation than the older green hose that perhaps some tried in the past.
As with all PU hoses this is slightly more rigid in use than a PVC hose - that is the nature of PU tubing and why it lasts so long in use even with hot water. Because of this tougher material it usually needs a good few weeks use to start to break it in fully and get full usability from it.
We do notice that whilst many users will love one type of hose others hate it - its very subjective a bit like brush choice. It really does depend on your own user experience and most probably work used on. Whilst this light green hose has been very popular since its launch about 2 years ago (and far more popular than the orange PU hose), it still does not suit everyone.
As has been said before (so feel free to blank this bit Dave!) how you use and manage your hose will make the biggest difference to twisting and kinking the hose. It is best for the hose if the pole can be disconnected from the hose reel after each job and carefully coiled up in a loose coil before putting away. This applies whether using a 'hoseless' setup or not. Leaving the pole connected after each job will make any twists and loops that have been created by the pole movement on the job to be forced to stay in the hose upon coiling up the reel.
Disconnecting allows these to fall out after each job and will greatly prolong the life of any hose and help prevent kinks and loops. It will also reduce frustration on the job - as much as can be expected as pole hose can be the most frustrating of products even when looked after beautifully
If absolute flexibility is needed and only cold or at most warm water is being used then the reinforced flexible PVC hose is very flexible and easy to use - however it is not as long lasting as any of the other hoses.