This product does as it suggests. However, I don't think it's all the DIY. Never has the adage, "measure twice, cut once" been so accurate. I imagine that the second and third installations are infinitely easier. I might even say that after doing it once, I could do without all the prebuilt parts and would prefer to mount the track directly on my own.
However, I have one gripe, and it's a major one. The accuracy of the manufacturing of this product is not impressive. For a product that demands such accuracy, they should check their manufacturing facilities. Specifically, on the one I purchased from HD, the end jamb bracket was not centered on the wood header. Rather, it was all the way over to one side (see picture). What that meant was that despite me making sure the header was true and plumb, once the door was on the rail, it rubbed against the split studs. When I adjusted the jamb bracket (fortunately I used screws, not nails, as suggested), it meant that the wood header stuck out from the wall, leaving me the job of sanding down the header, to get the sheet rock to be flat.
I suspect others know this, as ALL the boxes at HD were open and I am a betting man that says people know to look for this, as its a major issue.
I am also not a fan of the split studs. First, two of the four of mine were bent. Second, the location of the metal frame is annoying, as it doesn't allow for easy connection to the header if it is not exactly an 80" door height. I would think they could do a better job with just four pieces of wood, with caps at either end that lock into a frame that is only in the center, allowing for easy adjustment.
Now that I know the issues and tolerances of pocket doors, I would simply purchase the hardware and not the kit. However, I would recommend the kit still, to anyone looking for their first time. Just check the boxes!