I got my wheels (all the car) sealed in May last year. Gradually, you realize slowly tear.
However, this is still nothing compared to unsealed.
Secondly, it is not a magic wand. It's not like that you no longer need the wipers.
From time to time in certain situations they are simply necessary: traffic lights, 30 zone, only sparse or drizzle etc.
Scraping ice I do only with my jacket sleeve and am easy going 10 times faster compared than anyone with an ice scraper and without sealing.
On motorways or overland routes I need actually practically impossible. Unless there skin so so down that you so and so nothing looks and must only have been going slower because of the water in the air.
If a truck comes to meet at a pace 80-100 and sprayed water on a disc, the water is verschunden before the hand on the steering column lever has.
In normal or strong rain, however, I'll go without ... and much more relaxed than before, because I still see 10 times more!
For processing I say here now times nothing else .. because I've already done in my forum.
Each of the work (and yes .... This is work for a newbie !!! Safe and Secure 3 hours of work!) Has still to come .. I put very fond to read through my HOWTO. It answers many questions and makes it easier to all who has never done it.
I'm now 6 cars sealed (incl. My), and all are thrilled.
Here is the link to the HOWTO.
[See footnote]
Where I am describing illustrated, on what you have to watch a few tricks how it is much easier and hints as to what should behave / need to be sure that everything goes well to.
Even videos of my own car are.
Have fun with the result!