What issues??
Well put it this way. Go to the Crucial website, order 6 sample pieces and when they arrive put a piece onto a card and draw around it. Now wet the sample and put it back onto the card exactly within the lines you've drawn.
Now sit back and watch it shrink before your eyes.
Then think of the damage you could do if that 2 inch square sample was actually 24 foot by 18 foot..............

and at £60 sq/m or more you do the maths.
I priced one of these up today, just the dining room, although half the mansion has got this stuff on the floor. Don't really care if I get it or not, although it is glued to the floor which should give some resistance to shrinkage.