In my experience, even something that feels wonderful and perfect, something that makes you immeasurably happy, something seemingly purely pleasurable, even something like that will lead to stress and suffering if it is rooted in sensual desire. Something that feels that good at the time but opposes the precepts inevitably yields stress and suffering. In my experience, the more the precepts are abandoned, the worse the stress.
And the contrast between 'good' feelings and stress can be extremely large. Don't blindly pursue happiness, measure its origin against sila. You don't want to experience the depths of Dukkha that I did after pursuing what I thought was 'good' because of how it felt.