Unfortunately, with the package arriving in such poor condition, we could foresee a system damage page being put into our review.
We found 5 small pieces of plastic, which were later confirmed as broken clips, freely moving around the system's internal area. If one of these were to fall into the power supply, the outcome wouldn't be good – further reasoning for orientating the power supply fan in a downward mounting position.
The clips were intended to hold the BitFenix Shinobi's roof panel in place. With the clips broken, the roof panel was free to move and was impossible to secure to the case. While the issue may not be system-threatening, no customer is going to be happy to receive a system in less-than-perfect condition.
The problems may be courier-specific and you may be lucky enough to avoid any issues, but if OcUK used an additional external box filled with impact-absorbing packaging, the system damage would be far less likely to occur. I'm sure that customers would be happy to pay an extra £5-10 packaging and delivery charge to ensure that their system arrives safely and in its intended condition.