Here is what I do....keep in mind I'm in canada.
I look for steep drop offs from shore and I like to see a depth of 25 - 28 ft.
It is nice if there is quick access to a shallow bay
Use depthfinder to see if there aready is a crappie population in the area.
A crappie condo ,shelter, ect probably is not going to draw crappie to an area that does not aready have other reasons for them being there.
Droping a shelter in where there aready is a scattered population will draw those fish in.
Finally you are going to have to pic a couple of different spots that at least one can be fished regardless of wind direction.
Just my thoughts
Ken