Seabox isn't probably what he's looking for. This is a consumer's version the skybox. While the rates are cheaper than the latter they are still no match for what you would pay for dedicated sea freight and consolidated shipping (providing you have the volume to back it up).
Seabox also recently raised their prices. Making then even less desirable.
I used ICSL a few years ago to import a front cut for my car. Everything went smoothly with them. I can't remember the price paid for shipping, clearing and delivery to my home, but I do recall it was not unreasonable.