I own a Motorcycle repair shop and used Plexus exclusively for all our windshields/plastic/vinyl cleaning. Not only us but the many people who we recommended the product to.
Plexus is without question a great product but is it good enough to warrant double or triple the cost of other products. NO!!! Not even close.
We now use SC1. Is it as good? Not quite but it's less than half the cost for much more product with only a marginal difference in quality.
The last price increase was the straw that broke the camels back. It was already WAY overpriced but still they jacked the price again. Well they greeded themselves out of our market and the many many people who used it because of our recommendation. Now we and they are using something else.
Plexus, loose the greed and we will be glad to use your product again!