My newer model HaH works fine. I bought it a year ago. Since then I've trapped 5 raccoons, 4 possums, 3 woodchucks, 1 skunk, . . . and a partridge in a pear tree -- basically everything that gets near the figs.
The only problem I had happened when a piece of bait (carrot) rolled under the trigger plate. But once trapped, nothing has escaped.
I bought the biggest trap I could find. There is a smaller version that is inadequate for raccoons.