I’m moving to wfp in the summer, It all boils down to safety in my thinking. I currently have a helper but if I didn’t in the winter months I’d be missing out houses or leaving windows where I needed footing etc. Wfp will eliminate this problem where I’m 100% safe. I’m nearly 40 now, while that might not be “old” it’s made me think more about making things safer & hopefully easier. There’s definitely a place for trad & people who want to do it it’s obviously fine. My old gaffer is wfp & around 8-10 years ago he advised me to move over to which I replied yeah I’ll look into it. I had no intention really as I thought how can it possibly do as good a job? I saw him around 6 months ago & told him I’m moving to wfp & he let me look at the windows he’d cleaned on a house half an hour earlier a few doors down & i couldn’t find a mark on them. He said even the customers who didn’t want wfp now prefer it to trad like so many have said on here. It’s an each to there own kind of thing, in the right hands they both get the windows clean!