It's really hard to crack a vitreous porcelain sink in 30 days, and what's up with "the pipes needed  tightening"?

She liked to be on her barefeet in the meantime, ceramic/porcelain seems not pleasant (rugs on ceramic might slip?).

I put in granite kitchen counters (it was 2003 :) ) and porcelain tile throughout, probably $15-20K. 17 months after purchase, I had an agent list the home for $350,000, and sold for $330,000 in two weeks. 

New Herringbone design porcelain tile in baths w/ tile new tile highlighting the garden tub, New Tile around Fireplace.

Bath tub - chips in a porcelain tub do not make a rental uninhabitable, but how bad is it?

The 28 units of 4 bedrooms are rented by the room, big suites for about $625+ a pop (thus I need my own people's eyes on that complex daily) the ones are huge-custom cabinets porcelain tile floors granite counters, high ceilings etc, averaging 1100 a pop, its first class product, its not as small of a deal as it first sounds.  

Impervious to Moisture• Porcelain tile is chemical and stain-resistant and can be installed in areas where another flooring isn’t recommended.

If there are two single wires running parallel on porcelain knobs then it is ungrounded.

I know porcelain tile with mortar requires a concrete slab to go on top of, but what options do I have if I do not want to install a concrete slab yet want the ground to remain fairly rigid and solid enough to have chairs, tables, etc?

Fridge, oven/stove, dishwasher, microwave/vent) -New sink, porcelain or something?