Is Zinsser primer worth it?

Is Zinsser primer worth it? Yes, Zinsser primer is generally considered worth it by both DIYers and professionals, despite being more expensive than budget primers, because of strong adhesion, stain-blocking, and versatility. Zinsser Bulls Eye 1-2-3 water-based all-purpose primer is worth it for general priming, as it sticks to many surfaces including glossy, blocks light to medium stains, low odor, and easy cleanup, reducing need for sanding and extra coats. Zinsser B-I-N shellac-based primer is worth it for severe stains and odors like smoke, fire, pet urine, nicotine, where cheaper primers fail, as it seals completely in one coat and saves repainting. Zinsser Cover Stain oil-based is worth it for heavy wood tannin and water stains. While Zinsser costs more per gallon than Kilz or store brands, it often saves time, prevents bleed-through that requires extra topcoats, and improves long-term durability, making it cost-effective overall. For critical jobs like smoke damage or glossy surfaces, Zinsser's performance justifies price. For simple new drywall, cheaper PVA primer may be sufficient, but for problem surfaces Zinsser is worth premium.