Many factors are at play that affect the perceived quality of a smoke. I'm not sure if it's just luck, but I seem to be able to get a good smoke out of any pipe I pick up - large or small, cob or briar, straight or bent, et cetera. I regularly smoke pipes with crooked and off-center drilling that seem to perform just fine despite these flaws, defying all logic that they should be bad smokers because of the poor craftsmanship. It's certain tobaccos that I still struggle with, particularly those which stubbornly resist taking a flame regardless of how moist or dry, how loosely or tightly packed they are, but I digress. In my opinion, truly "bad" pipes do exist, but are relatively few and far between.
I think psychology has a lot to do with whether a smoke is "good" or not. If you're smoking a pipe that you find to be detestably ugly, and you don't like the feel of the pipe in your hand or between your teeth, then you might not have an enjoyable smoke because of the bad impression that results, even if the pipe is well-crafted.
Sometimes a pipe just doesn't work with one's smoking style; for example, someone who constantly clenches and has a tendency to salivate a lot might find a full-bent pipe to smoke wet and blame the pipe, when in reality, the problem is caused by drool running down the stem.
I think psychology has a lot to do with whether a smoke is "good" or not. If you're smoking a pipe that you find to be detestably ugly, and you don't like the feel of the pipe in your hand or between your teeth, then you might not have an enjoyable smoke because of the bad impression that results, even if the pipe is well-crafted.
Sometimes a pipe just doesn't work with one's smoking style; for example, someone who constantly clenches and has a tendency to salivate a lot might find a full-bent pipe to smoke wet and blame the pipe, when in reality, the problem is caused by drool running down the stem.