^ can vouch for that, start is pretty slow, some act bosses take minutes of kitting, early bosses 105-120 are pain, to kill your first Akarat you need bunch of +skill crafts and good pierce. Build can run duncraig fairly early with sigle knife throw mode 1-shotting stuff, but is it true gymnastics to survive there, takes a lot of focus to do these runs (some may find it fun vs just brainless facerolls certain other builds offer).
Overall scaling of the build is pretty weak early on without gear and high levels.