Hi Pat,
Choice is a great thing lol, lol. This set is good for radio vehicle conversions in particular, as you get the No 19 high powered amp and a selection of parts that can be used for connection boxes. Also if you were detailing the inside of a Sherman/Churchill it would be most appropriate.
The Resicast set is good becasuse you get a choice of sets both vehicle and infantry, so if you want a No 22 , No 19 or even a No 18 set for you vehicle then you have good choice. With 2 of each set it is possible better value, although I don't know how the euro converts to the CA $ = pounds sterling.
I haven't tried the Bronco kit yet and Maple Leaf Models do a No 19 set which again I haven't tried out.
I think both the Formations Set and the Resicast Set are excellent accessories, and give a good choice depending on your project.
Al