Other option is to just learn how to join without fasteners.
+1. What's wrong with traditional joinery. Woodworking and cabinetmaking seems to be a dieing craft. Traditional joinery has been used for hundreds of years before any alternative came onto the market. There's always something new on the market to make things better and faster. I don't agree that the pocket system is better. In fact, I think it's junk joinery. Reminds me of the quick knock down imported products.
The joint still exists as basically a butt joint (the weakest of joints), held with a screw at an angle. If the screw did its thing being straight, it would have better holding power, and would account for less "pulling toward the angle". I've used pocket screws to just try them out. I don't agree that it's faster. If you can set up for joinery, a proper glue joint is more predictable without the hassle and without the unsightly holes that are left.
So, hole covers can be made, and that is an obvious attempt to cover up. I guess it's obvious I don't like them. My feelings are that woodworking forums can be a learning platform for an age old craft. There has to be contrasting points of view. Maybe mine is the voice of reason. I would think I've failed in whatever suggestions were made if they incorporated makeshift procedures just to get by.
If the planning for the project takes its initial steps, that is to plan the project and designate rabbets and dadoes, and any joinery methods, the setup is quick and the results show. It's hard to believe that a hobbyist has to have what is thought of as a "quick" assembly method.
The pocket screw idea is not a new one. Before the jigs and special screws went on the market, similar methods were used and they were called "toe screwing" or "toe nailing". Using trim screws is still a popular method where it may be necessary. You can barely see a hole. It's about the size of an 8d finish nail head.
If you decide to learn woodworking do a little assembly research into "blind screwing", or "blind nailing". Some of the refined techniques don't ever get mentioned until discussions about "fast" and "easy" are brought up.
The jig system is another way to have you spend money thinking that it's worth the money because it's easier, better, and faster. What I hear is that the users are elated that there is an alternative...why not use it.
I've had this discussion with other shop owners, and would bet that I could machine the parts and assemble as fast or faster than using pocket screws. However you want to join your work is entirely up to you. If you use twine, tie wraps, or 16d nails, it's your decision. If you are using pocket screws, ask yourself if its because they are better than traditional joinery.