Gave my moms IS250 another wash yesterday. I had given it a full detail with Ultima as the LSP back in Feb. Since then the car has been washed with Chemical Guys Maxi Suds about once every 2 weeks or so. So far the Ultima is holding up great. The paint still looks as great as the day applied and still beads and sheets water well too. The only thing that is starting to slack is the slickness, which I will say it is not as slick as the day I applied, but I am sure one wipe down with Ultima's Quick Detailer would add the slickness right back. I am very happy with the results though, here are some pictures from yesterday afternoon...