"Portable" dishwasher install

This was a portable diswasher water line hook up. Creative, no? However, the only thing wrong, besides obviously not being professionally done, is this anti-siphon valve/vacuum breaker on the water line (somebody please confirm if in fact it is a vacuum breaker). If it were to go off it would spew water out onto the floor, wouldn’t it? The drain was even piped right, with a p-trap and air gap. He/she also took the time to sweat a tee and riser connections from the hot water line to the hot & cold lines on the faucet. Can you think of anything else that might be wrong, besides aesthetic reasons??? Please advise. Sorry, I should’ve taken a better pic.