Apart from the non alignment and random cuts - the thing which is driving me crazy is where, in a few laces they've used the same pattern tile next to each other!! Arrggh.
An aunt of my mothers bought expensive tiles for her bathroom; whole room of mini glossy white 'metro' tiles, with a band of the same white tile but with a pink bow on around the center of the room. Sounds twee but were very pretty. She left her tiler to it while she was at work. She got home and he'd left a note downstairs proudly announcing the job was all finished upstairs. He'd done a beautiful job of putting all these little tiles on straight - but all the bow tiles were upside down! She was 
:(