That's fine when it's self-motivated, but it sets a terrible precedent for expectations. Doing things like this can put in management's mind unrealistic expectations for you to always work at that pace. Which can be unhealthy and burnout-inducing.
"Banging it out over a weekend" is much easier when it's preceded by months of requirements-gathering and architecture design by osmosis.
"Banging it out over a weekend" is much easier when it's preceded by months of requirements-gathering and architecture design by osmosis.