Ryder
I have that loom in my car and had it installed by a sparky as I'd had no experience and still haven't at properly using a multi-meter and then the smarts to wire up into other car parts such as the Ford ECU, the Hyundai light and wiper controls and so on.
The loom caused no issues and in fact with my re-routing of the wiring as part of the rebuild, having the marked wiring has been a bonus whilst chasing out wires.
Here's a photo of the sparky's efforts behind the dash and of the loom generally.
More relays than perhaps necessary but these bring in a bit of safety and were all not part of the loom kit.
I located the fuses to the right of the steering column so out of sight in this photo. And that bundle of 5 plugs on the right all hook into the back of the dash to make it all accessible.
Cheers