The photo below shows all of the components. Notice that I have taken the bypass valve apart and show all of the parts. The bypass valve is very well built. It has a simple construction, which is easy to assemble/disassemble by hand.
I cut open the outer section with the PTFE to see what it looked like. As soon as I cut it with a hacksaw, I realized that it just snaps into the plastic holder:
Here is a side photo of the PTFE bypass media:
Notice that it is quite thin - I measured it to be .085" thick. It's not exactly depth filtration.
Here is what I think of the filter:
The entire unit is definitely well constructed. All components are well built, and nothing appeared to be flimsy. I can't tell what type of filter media the full-flow section is using but based on the appearance and texture, it looks like it is probably a synthetic media.
The one thing I found surprising was the thickness of the bypass media. I guess it doesn't have to be thick to restrict flow of larger particles through a sintered media, but I don't see much volume that can hold particulates. It appears to be effective, but I'd be leery of expecting it to capture a large volume of particulates in a greatly extended OCI. The manufacturer’s website suggests that you change the filter at double the recommended OCI (eg: from 3-5K to 6-10K) but keep the oil in the engine over multiple filter changes, from 24,000 to 30,000 miles. In my opinion this filter change regimen might be fine for this OCI for keeping particulates out but you’d be pushing most oils to have any TBN left over this OCI.
Based on the UOA I had done when I completed the OCI, I'd say that it appears to be doing a good job. It doesn't look like it's as efficient as conventional bypass filters, but it's probably doing a better job than a conventional full-flow filter. The UOA results on my Honda S2000 with an Amsoil BMK-13 setup are better, but that would be expected given the construction and size of the Amsoil bypass filters.
I think this filter is a little pricey for the benefit it provides. I paid around $25 plus shipping for this filter. Their cost savings claims are a little far-fetched considering the price of the filter and the length of time recommended for each filter.
The obvious benefit is its ease of use. It just spins on like any full-flow filter, making it very easy to use. I'm just not convinced of the cost benefit.