I haven't decided on my epoxy floor yet.
But, I have decided to prep the concrete by grinding it with a diamond wheel cup versus using an acid etch. After I grind it, if I like the way the floor looks, I may consider just using clear epoxy. I have contacted the supplier for Wolverine coatings and their clear seems to be designed for good adhesion since it is used for primer also.
I have been working on taping and floating (done), installing lights (also done) and inside painting. Also, the restroom tile job is still ongoing. I am working on cabinet designs and will get those to a cabinet maker soon.
I'll post new pictures in a few days.