Target type, distance, purpose, etc.
Overall it is a good idea.
You will not be able to hit a dime or quarter size target all the time. But hitting a tennis ball sized target is a no brainer at 100 yards. Unless you got a pretty crappy build.
For hunting any game it is more than adequate with exception of a very large game like a bison.
You will need a stable side mount bracket ($25 from amazon), set of rings or single base cantilever rings ($30-$35 from amazon), and a scope 3-9 or 4-12 ($150-$200 Vortex from cabelas) or bushnel dusk&dawn from walmart (3-9 or 4-16 @ $80-$90)
Alternatively POSP scope, but they are pricey ($350 or more). But they are designed for AK. But the reticle is different from simple crosshair and scope is offset to the left and requires getting used to it.