I just got my 3 shelf Rigidrack. Really excellent build quality with some caveats:
- No spares for anything. All screws and caps are exactly the right amount, so hopefully you don't need a replacement.
- Pilot holes could be improved by counter sinking. It's really hard to align those little holes sometimes.
- OMG the packing materials. While securely packed this seems like a very manual process, with copious amounts of packing tape, straps, and open cell foam. It has taken me longer to break down the boxes and sort them into recycle/trash containers than it did to assemble the shelves.