i have a 60 foot x-tel
the pros - short when collapsed so will fit in most swb transit sized vans
telescopic - adjustable within inches rather than metre sections(modular) better for limited access
lighter than most telescopic poles
not to rigid which makes rinsing and removing bird poos easier(just a flick of the rist)
the only down side to them and its quite a big one ,is the clamps are glued on so if you need to replace a section you may have to cut off the clamp which will also cut the section making it shorter