IMO, there are three main factors in "feels good." They are stock fit, handling fit, and "in the hands feel." Stock fit is based on length measurements needed to properly position the aiming eye. Handling is based on weight, teeter-totter balance, and swing efforts, both unmounted and mounted. Feel comes from the size, shape, and texture of the grip areas.

The more closely the gun satisfies all three the better it feels. The snag in the foregoing is learning what numbers really want/need. One of the big hitter problems is determining whether you will be shooting for fun or seriously trying to hit targets. For example, I find properly (for me) stocked game guns with splinter forearm and svelt wrist to be a delight. However, I shoot pigeon/light fowlers better.

DDA