SPRAY VS. BRUSH
Recently, I decided to give spray a chance. I've heard how it's easier to apply than brush, and that it dries faster so you can get in more mini-coats.
So far, I like the faster drying time and the relative ease with which thin coats can be applied, though thinner coats require more coatings to get the same level of smoothness.
I recently read a bit of advice known as the Rule of 65. It says to avoid spraying if the temperature is below 65 or the relative humidity is above 65. Otherwise, you get a milky finish caused by captured dew or water vapor. Under such conditions, brushing may be the only way. Apart from that, spraying can be a nice way to get that wet look without dripping.