We used it today and tested against the normal,
1. It is defiantly concentrated you can see and smell it in the tank
2. It bubbles a bit on the glass looks good I think and the bubbles dry to nothing
3. It feals slippery a little in use a little like squeegy glide used to, it's quite a nice dealing actually
4. Drys quickly , a bit like rain x on a windscreen, doesn't leave marks or anything so bonus
5. We rince and scrub at the same time so are quick anyways however it seems to defiantly improve any spotting issues so gives you more confidence when being quick
6. Hydrophobic windows are slightly improved when scrubbing and rinsing at the same time and leaving the brush on the glass, however whenwe tested brush off the glass with fan jets the rinse is vastly improved , but as I say if you clean normally the spotting is defiantly improved , we were trying to clean as quick as possible and it was difficult to make windows spot
All three of us liked is , it's not a micicle and doesn't clean the window for you but it does what they claim and is 100% noticeable in use we will use this product from now on
I'm not affiliated to the product but am glad to answer any questions on our experience