I used to help a buddy paint houses, 20 or so years ago. There is a big
difference in cheap and good quality brushes and a big difference in
paint quality. I always tell my customers that good paint holds up
well, covers well, and gets me out of your house faster.
With the Murphy bed project I prepainted almost every thing that would
be glued to a contrasting color piece. I used General Finishes milk
paint. That stuff covers pretty good with one coat but if you give that
surface 10~15 minutes to dry you can instantly apply the second coat. I
was not looking for a super smooth or a gloss finish.