I had never even used D101 until recently because we (when I detailed from like.. 2006ish to 2008/9) exclusively used APC+. Once I got it and started cleaning up my new to me car, I was honestly blown away at how well it cleaned (my dad is a smoker, so the amount of disgusting that came out of the cloth interior was amazing.) Came on here just to see what other people had done with it, and was pretty surprised to find a good few people talking about it not having enough cleaning power. Could've fooled me on that one!
Not to mention, D101
does say that it's formulated for interiors, so to me that would mean it's perfectly fine to use without any type of fiber cleansing concoction.
Plus, how would you even prove that? There's not even a general consensus on how to tell if the protection is completely gone from our paint (in regards to "stripping" the paint), but people are tryin to convince me that some APC residue is gonna destroy my carpets... All I can think when I see these kinds of statements is "Show me the carfax!"
I'm sure a lot of these ultra specific leather cleaning companies put out really fantastic products, but I often ask myself if they're really worth investing in, and I usually decide no. If every surface needs a dedicated cleaner I can't wait to get some dashboard cleaner in the future.. or door jamb cleaner.. or idk.. oh, right, air vent cleaner.
My main interest in OPC is mostly just to see if it can fill the spot for a dedicated degreaser and an all purpose cleaner for me. I want to try it out at something like 4/5:1 for exterior uses, and 10:1 for light cleaning on the interior (fingers crossed.) I'm hoping it can take the place of D143 and D101, maybe even be strong enough to clean everything up by just spraying and rinsing vs needing to agitate. Although I suppose I could just use my wheel brightener to clean up my wheels regularly, since that's the most time consuming part of the process anyway.
That floor mat came really clean, that's definitely one of those scenarios where I would've thought it wouldn't have cleaned up as well as it did!