There are some people who like them here. They may have changed them some since I had one.
Myself, in the mid 80's I did a lot of experimenting with mauls, axes,etc. I bought the chopper 1 used with the fiberglass handle for 25$ and hated it. In sticky hardwoods it didn,t penetrate enough to activate the levers and then the ax part was stuck in the wood. When it did penetrate and activate the levers the wood would violently fly apart so if it hit your truck or whatever I considered it dangerous. I remember selling it for 8$ after having it for a while and giving it a fair shake. Would much rather use an standard curved handle axe in frozen wood and a monster maul in the tougher stuff. Don't try to swing a monster maul like an axe and its the best hand splitting tool I have tried.