Well build issues aside if there even is any there is a lot of subjective to be had here.
A circuit is a circuit so this is absolutely a Buzzaround and not a Rat.
That said this circuit is absolutely loud by design:

As for the distortion it produces it is absolutely very high gain by design so I can understand the Rat comparison.
Check this out, it is the exact same circuit:
https://youtu.be/ux6B7rda1wQ
After watching that if you want to try and Mod the Level back that is possible. Ours is based exactly on the highly sought after original. Value by value. Also you turn the Volume down on the Guitar which is the recommendations from the internet for Buzzaround owners especially if using hot pickups. As for the Fuzz character you can adjust the BIAS aka TIMBRE for a slightly gated tone.