I bought this test set for my kid, for the QR,I found that there are a lot of similar/same questions(with just a figure changed or change Shop 1 to Company 1) in each pack of 6. Saying pack 1 is ok, pack 2 is about 50% similar to pack 1, when doing pack 3, basically you have seen nearly all very similar quesions in the previous 2 packs. And absolutely not necessary to complete the last 3 packs.
For AR, of all 210 questions in 6 packs, there are ONLY 4 different question types, means the 206 other questions are highly similar to these 4 questions. I didn't even print the pack 1 for my kid, as I didn't want her to waste time to do it.
DEFINITELY A HUGE WASTE OF MONEY.