Hiya Tosh, so that is what you were asking when I bumped into you the other
Glad it wasn't me that had the dissatisfied customer!
I have found that getting the first couple of cleans right is the hardest part, and all of the different types of windows seem to need a slightly different technique.
Some windows you have to steer clear of, and so far I have found that any window that has oxidized frames are to be avoided, you just cannot get them anywhere near as clean with WFP as you can with Traditional methods.
If you arer a fussy and particular cleaner you will not really have many problems, jsut because there is someone using WFP, it doesn't necessarily follow that they will do a good job.
You will leave the odd spots on windows, you cannot know if you have done a perfect job or not until they have dried out, and it can certainly take 2, 3 or even more cleans until the windows are coming up absolutely spotless, but the benifits are huge, overall you most certainly work quicker, and the safety aspect simply cannot be overstated.
But take your time deciding to get WFP, the longer I'm the only local guy in Chepstow with one the better
Cheers,
Ian