I saw the review.
It's funny that you don't like the battery cap, if it had been the case that we had to recharge the battery once an hour I could understand the irritation, but this is not the case.
The battery cap is a much more solid construction compared to the hinged hatch.
Top airflow vs bottom airflow, in this case top airflow makes sense. Or maybe you would prefer bottom airflow so you had to pop out the atty every time you had to adjust the airflow.