Raygt3

I picked up a bottle of Zymol Seal, soft seal conditioner in response to the complaints on the part of some folks having issues with squeeky windows and soft rubber seal related noises. Have a '12 E550 cab. Thought I'd give this a try before I begin to have issues of my own. Appears to glycerin based so should be OK for use on rubber items. Just wondering if anyone has tried this and what their results might have been, any issues? Hope this stuff works as I hate squeeks.