I can not agree.
There is just enough of settings as this plugin does just a simple thing – slices one Checkout page into steps. You are in control of all such steps and eventual merge of them.
The logic of fields is just inherited from WooCommerce, the same as its distribution across the page. See your theme.
The login step is available and can be turned off as well. You just need to read instructions.
Visually it looks good as the only change to the design is the top progress bar (steps navigation).
I am afraid you did not scout this plugin through enough thus, your “not recommend” is of low relevancy.
