The flesh rippers are pretty fun. You can one shot kill dwarves with a kick in the sack, which alone is worth it. They are poor at blocking, so if you are used to relying on a shield, they are maybe not for you. Being higher level weapons, they actually work on the swamp and below enemy even though they are slash weapons, just like a black steel sword can tear up the swamp guys.

the armor is not good enough at defense to use if you get hit much. If you avoid being hit most of the time, it could be fun.

The new content also offers a bit of decoration and something new to do for a while, though after 5 or so frost caves you will probably tire of it.