I have the standard size Kreg pocket cutter and an older Porter Cable portable pocket cutter (no longer made). The Jig you are looking at is used in conjunction with the standard Kreg system, I don't believe it is a stand alone product.
The standard system will work in woods 1/2" thick and thicker and are fine for strainers.
The only drawback is that the drill bits are proprietary and not all that easy to sharpen (but it can be done).
The standard setup comes with a vaccuum attachment which works well with my small Oreck or Dirt Devil hand held vac. Before we started using the vacs, we had to move the operation outside because of the wood chips getting everywhere.
The photo shows the jig I have. The micro jig replaces the guide being used in this instance (where the drill bit enters the bit guide).
I have also found that using N0.6 X 1" and 6X1 1/4" fine thread sheet rock screws work just fine. Unless you are making hardwood furniture with this, I don't think the pocket screws are necessary.
We use strainers on all work done for the local museum regardless of the size. It makes it so much easier for them to access the art if they need to, and with the relatively narrow frames they prefer, it provides a good surface for the hanging hardware.