Great product. From my experience, all Optimum are some of the very best.

This is my favorite exterior glass cleaner. I have tried 100's too. I loved the added protection it leaves behind with virtually no streaking. Interior use works great, but has a tendency to fog up. But at least it's a streak free fog up. Best stuff and it actually stands up to its claims unlike other brands.

I love this glass cleaner, it works very well! I spent years looking for a good glass cleaner and this stuff works great!