I literally advertise “We clean windows, not dishes” and explain what window cleaning chemicals we use. So, yeah, there’s maybe one reason that home owners are giving you the eye…
Honestly, I absolutely love the Unger solution. The smell is amazing & it does a great job. I’ve had problems with dish soap - hot days especially - leaving streaks that weren’t immediately apparent, but magically appear 30m - 1h after I’ve hit the window. So I stopped using dish soap.
Disclaimer - I’m new to this world. But in my humble opinion, if there’s a bottle of something SPECIFICALLY made to do the job you’re doing, you should be using it. There’s clearly a reason it exists in the world. Find a brand you like.
I’ve also used Ettore easy glide - I also like it, and the squeeze bottles are better than the bland Unger jugs when it comes to dishing it out, but to each their own. Unger seems to go further and I like the smell.