David, the Minwax polycrylic is one of the few Minwax products I'll actually use, but it's my "in a pinch" go-to for a water borne finish. (I generally use Target Coatings USL or Hybrivar) It's downside for me is that it contains polyurethane and that's something I just prefer not to use on furniture, although there is only a limited amount in a water borne acrylic. I have sprayed the product right out of the container with very good results, both on wood prepared with BLO and a seal coat of de-waxed shellac as well as over flat latex paint that I used for a particular product purely for color.
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The most expensive tool is the one you buy "cheaply" and often...