Epiphone Mike Dirnt Grabber G3 SB

The bass sounds okay, it's not the same as a Gibson G3, it's much more boomy with less attack. I know Epiphone doesn't promise that, but it's worth keeping in mind.
The main problem I have with this instrument is the setup and overall build quality. Let me start by saying that I am referring to my instrument, perhaps others are better.
The bass is not playable at all when taken out of the box. The intonation is not set, more than 1 tone off per octave. When taken out of the box, the neck had a slight convex bow, which required loosening the truss rod. The nut needs to be adjusted in order to lower the slots. After making adjustments, it turned out that it was impossible to lower the action below 2.5 mm on the E string (the saddle is already lowered to the maximum), and even then the truss rod would still need to be loosened slightly, which would probably give a value of around 2.75 mm. This means that the only option in this case is a different bridge that will allow you to go lower with the action, or a neck shim. Even if it turned out that it was technically possible to lower the action, the frets are not perfectly levelled. It would be difficult to go below 2.5 mm without levelling. What's more, the string was stuck in the nut. When I tried to remove it, the nut chipped.
If you are planning to buy an instrument, remember that you may encounter the same problems I did, which will most likely require the intervention of a luthier.