You're in for a treat. The M-43 is a great chopper and very tough khuk. While not as tough as the CAK, the M-43 will take more than you can throw at it (think of it as taking a 900lb gorilla to break a CAK and
maybe only an 850lb one to break the M-43

)
What you will notice is how weight forward the blade is. Pairing this with the curved handle and you have yourself an effective blade fueled by momentum...be careful with it!

Mine has a very aggressive feel to it. It's like it has enough respect for me not to bite...but I don't let anyone else use it. I know it sounds silly, but it's like it really wants to bite
someone.
The M-43 is one of the more weapony khuks out there, IMHO. Sure it'll cut wood all day long, but I think it with that curve it would just as happy plowing through people. From "tooly-ist" to "weapony-ist" I would say it would go: GRS, AK, WWII, M-43, Siru, Kobra...just my opinion.
While I would like to see the AK Boomerang in a larger size, for me, the 15" version just feels perfect as a camp/hiking knife. Not as heavy as a larger khuk or even a 16.5" CAK. Yet, it feels to have more chopping "umph" to it than a similar sized Siru. With the longer handle and curved blade you can really choke up on the grip and use the curve for your smaller whittling/carving tasks...once again, just my opinion.