I have one. A bit of advice I would offer is when you are on larger jobs where you need to be a bit vigorous with it, at some point, separate the pole, re-apply some PTFE spray, and allow it to dry while you are doing some lower work with another pole. That should ensure that no sections stick together. Also, if any do stick and are hard to separate, make sure that you turn the sections clockwise (with the weave). It shouldn't be necessary so long as you are aware that sticking can occasionally occur on larger jobs.
Another suggestion is to get in touch with Gardiner's and add some of their Y pieces to the order (the bits where the main pole hose branches to the jets). I have found these to be a weak link in the chain (but maybe I'm just slobhanded).
I don't want you to get the wrong idea about these poles. They are absolutely excellent IMO if you have the right sort of work for them.