Items included in the set: Wide-mouth canteen, Canteen cup, stove, canteen cup lid, and nylon carrier.
All metal items very bright-finished stainless steel. IMHO, will benefit from being bead-blasted to reduce glare and, if desired, to provide an ideal surface for painting.
There are some unfortunate compatibility issues between the Pathfinder (PF) items and many USGI items.
PF Canteen will NOT fit into typical GI canteen cup. PF stove will not fit onto typical GI canteen cup. PF canteen cup lid WILL fit GI canteen cup. GI stoves will not fit onto PF canteen cup.
OTOH, a GI plastic canteen as well as an Oasis plastic canteen WILL fit into the PF canteen cup.
Wide-mouth PF canteen has a unique flat plastic cap gasket for the untethered black plastic cap. IDK if replacement gaskets/caps are available from Mfr, nor do I know if a common "O-ring" gasket can be substituted. Early days with this rig. Will update, as appropriate. It should be possible to rig a cap tether.
Canteen cup required a little bit of tweaking so that the old-style "L" handle worked and latched properly. Very minor and obvious tweaks.
Stove is intended to work with fuel tabs, Trangia alcohol stove, and twigs. Near clone to the "Jolmo Lander" canteen cup stove sold on Amazon, but side venting is different. It will be interesting to test both these stoves during windy conditions. I suspect that "elevating" the cup above the point allowed by both similar stoves might reduce boiling times in that doing so will allow heat/flame to pass around the bottom of the (elevated) canteen cup and better heat it. Another experiment. If using the Trangia alcohol burner, it will probably be necessary to elevate the Trangia burner so that it is about 1" to 1-1/4" below the bottom surface of the cooking vessel and the uppermost part of the alcohol burner.
The PF ensemble will fit into a typical GI "Utility/Canteen" pouch which is a good thing as the supplied pouch is, IMHO, inferior in materials and construction to the GI item, not to mention similar "high-end" pouches. Unfortunately, the PF pouch lacks the "flap" of the GI pouch, thus always exposing the "bright" finish of the canteen. Even the GI pouch's "flap" is inadequate (too short/narrow) in reducing the "shine" of the bright-finished, un-blasted,un-painted canteen. Since preventing dirt/crud entering the pouch allows the items inside (entire canteen/cooking ensemble) to be kept free of crud, using an entirely different pouch which fully encloses the entire ensemble seems to make sense. I see no sense in being forced to take the time/effort to clean the canteen cup from crud every time I wish to use it.
As is my usual pattern, I will bead-blast all "bright" metal surfaces to reduce them to a dull grey finish, and which will provide an ideal painting surface, if desired. I usually paint bottom portions of cooking vessels with Hi-Temp paint, in order to reduce cleaning issues, and to improve heating. Black heats up faster than bare shiny metal and is generally easier to clean.
Summary/TLDR: Quality kit, with some "unexpected" and significant GI compatibility issues noted above. Had PF made this ensemble with a wide-mouth canteen and designed all components to be USGI compatible, it would have been ideal, especially if the various components could be bought separately. I bought this rig because I wanted a wide-mouth, Stainless steel canteen which could be heated in winter weather, and which would "play well" with common GI items. Turns out GI compatibility is something of an issue, but the PF kit is all-inclusive, and will work as intended; You really don't need any GI items to make this ensemble work for you.
Owning a Brit-made Crusader Mk 2 canteen ensemble, the PF item seems to be something of a civilian-oriented counterpart. Different, but similar in intent.
Submitted for consideration.
ETA: General Note: I've noticed that many "butterfly" handles on a great many canteen cups (both GI and Civvy) are "inexpertly" bent and often conform poorly the shape of the vessel to which they are attached when the handles are folded. This often causes problems with extracting the cup from the pouch; the too-wide wire handles creating a problem. A little careful bending of the wire handles to make them better conform to the sides of their cup will pay off in much easier extraction from the pouch, and easier insertion. Suggest making efforts to not "scar" the handles, and sanding/filing down any and all post-bending "scars". A few minutes spent bending the handles at the workbench will save many minutes of frustration in the field. Ask me how I know.