there are probably hard to sweep than a fully flat floor but the look and feel IMO beats polished concrete, racedeck, etc. My only issue would be staining on the grout lines and while epoxy grout lines minimize/mitigate this....it's not 100% stainproof

Pricewise I have never explored epoxy...but between materials and a *quality tilesetter*.....it may be up there in costs as well.
quality contractors are hard to find, and the good ones IMO is worth their weight in gold