I have one, its currently used for 90% of my work.
There are issues with the clamps coming un stuck but easily fixed with araldite, the barrel nuts on the clamps can strip their threads easily if you overtighten them.
Replace the hose with stream lite 5, the standard stuff is horrid.
It is quite flexy fully extended but not really an issue if using vertically once up, what I tend to do if I want the pole more rigid for over a conservatory etc. is not fully extend each section makes quite a difference.
Personally I've not used a slx but the price difference is considerable, all said and done including the minor niggles for daily domestic use its a winner.