I'll provide a total newbie perspective. I just did my first polish and waxing with my new PC 7424 over the past week. I can say for sure that I am super grateful I had the PC for the polishing step at least. It saved me a lot of time and, perhaps more importantly, effort. I'm pretty sure I was able to correct some defects even using a mild product and pad that would have been a chore by hand. And even though I am totally inexperienced, I did not have any problem with polish or wax getting flung about.
I probably could have waxed faster with just a foam pad, but I enjoyed the experience of trying it with the PC. I don't have a bonnet so I did all removal by hand. I have to say I rather liked the intimacy of that process. Through the machine, I suspect, you don't get to feel how wonderfully smooth the surface is under the towel.
I may only use the PC a few times a year, but I'm glad to have it. I'm sure I've wasted more money on less useful things.
I probably could have waxed faster with just a foam pad, but I enjoyed the experience of trying it with the PC. I don't have a bonnet so I did all removal by hand. I have to say I rather liked the intimacy of that process. Through the machine, I suspect, you don't get to feel how wonderfully smooth the surface is under the towel.
I may only use the PC a few times a year, but I'm glad to have it. I'm sure I've wasted more money on less useful things.