Can use in sun, shade, wet goes on easy and comes off the same way using a dry lint free cloth. I have a cloth to put on in one hand and the buffer cloth in the other. Products maintain excellent shine and protection for months. I would suggest using it four times a year since it's so easy going on and off! Did I mention it smells pretty good also.
If you're like me and have lots of pine trees around, get the sap off immediately if possible. You can use it on glass however be prepared to have a dry cloth to handle streaks later, outside works better beading up than that other product.
Shop around as I did and you can find excellent deals!
only thing I would add being a thin liquid it only takes a little and does run.