Yes, I saw them. I've never had a super good close up of OG Gen3/4 decals, but, from what I can tell, these are a good match for them.
To clarify for folks, the Gen1/2 decals have a single red line on the long frame decal, spreading almost the full width. The Gen3/4 decal has blue lines above/below this line. This is the first I've ever noticed 2 red lines, in the middle, but I've got nothing to say they aren't right. I do like them better just because they do have the extra blue lines. This is the first time I've ever seen anyone make a non-Gen1/2 decal set, so, if you have a later GJS, this would show you know your stuff, because you didn't put the wrong decals on!
And if you say they are nice, then, I trust they are!