I painted 186 feet of 6 foot high block wall surrounding my property using a brush and roller to get a heavy coat that would last. This paint covered real well on this course block only taking about 13 gallons in total.
This white primer with its stain blocking and sealing power did the trick. After multiple children and more years of food stains, which “somehow” got on the walls, we needed something more than ordinary paint for the walls. The primer went on and stayed on the walls allowing me to paint a new fresh color in the kitchen. We no longer see the stains, only the texture which came through nicely
Used this over a basement foundation block wall with a fiber reinforced coating (Silpro's FSB is the absolute best version of this product, BTW, while twice the cost of Sakrete or Quickwall it is easier to apply and much harder when cured). The wall had been patched so it was rough in many places.BUT IT WAS GREY and is about to become my pottery studio. A single coat of this primer already transformed the space amazingly despite the unevenness of the coating.
It has minimal odor, and with a 3/4 nap roller went on well. Dries fast too. The roughness of my walls required a lot of back-rolling, and I was tempted to put on a second coat and call it done. Reading the questions about leaving the primer without a topcoat deterred me - it was suggested that it will hold dirt & dust, and be harder to clean than a paint with some sheen. Behr does not recommend leaving it without a finish coat either.
I had no problems with cleanup - warm water and dish soap with a painters cleanup comb/brush worked just fine. In fact if you invest in some orange turpenes (food grade) it cleans all paints off skin without problems and no chemical exposure.