My standard is' if it makes me happy, it's perfect'.
I tend to not attempt perfection in my quilting, still don't sew a straight 1/4 seam after 13 years, all my points are round, and what's this thing they call ' squared up'? I do some machine quilting, Novice is an overstatement for my ability, but, I feel it's good enough; I would much rather hand quilt, and those aren't perfect either.