I like the painted concrete...
I guess you have thought though how slick it makes things.
If you spit on the floor,,, your liable to slip and fall. (if you step in it)
That said I still prefer mine painted.
One of my shops had never been treated and was pretty old concrete... I will admit it would most likely have been better to treat it with something else first but I just swept, double mopped with lysol... Dry,,,, paint with Wal-Mart porch and floor oil based paint... Wal-mart doesn't sell anything oil based anymore ( couple years )...
Anyway it has held up pretty well.... I do drive into that shop regularly do a little touching up on it..
Using the battle ship grey kinda sorta matches the concrete so small spots of missing/scratched paint really do not show.
I like it kinda slick from the paint I can use a dust mop type broom and clean up much faster and with less dust that using a regular shop broom.
If you happen to have any oil spots it makes spotting them much easier - and of course clean up is easy.
I think the fact that the concrete was old and fairly rough - probably helped the paint adhere better....
I'm thinking I will paint the floor at my barn at the house I moved to last year..... keep us posted on your luck - maybe we can all learn...
Good luck
What I'd really like to try is one of the 'poor on' resurfacing products... You basically add a floor on top of your floor with this poor on type stuff... self levelling and glassy smooth finish. I've never seen it in person but I think it is supposed to be fairly durable..
tom
tom