I haven't used them but I know what they will work like since my Confidence units are very similar in operation.

They should work very well but you will probably want more than one unit per side if you go for the 2ft x 2ft ones. 2 per side minimum I'd say.

Also make sure you buy the ones that are tuned to the right frequency, or alternatively buy a slightly different frequency for each pair to get wider-band treatment. The downside of the RPG ones being highly tuned is that if you move rooms, or re-arrange stuff and the modal excitation changes you might want different traps. So keep it in mind.