It's literally the complete opposite of good for people who are new to the game. The decks aren"t great and from what I've seen, aren't even cheap to complete fully. The only thing they are is heavily misleading new players into crafting for mediocre decks. A community submitted deck list where you can vote for decks or a deck recipe list that would at least complete up to 5 cards you don't own would be useful. But as it stands right now, all it does is trick new players into committing into fairly poorly made decks, that aren't even cheap. This includes very forced synergies and seems to promote purchasing the adventures. The intention behind it may be fairly nice but the execution of it is extremely poor. But hey it's blizzard, I'm not surprised that they added another half thought through idea, kinda used to it at this point.
SRS eh? pretty good choice for a starting build, did you do research to actually find this? since it seems like you are rolling the hybrid SRS version, not the BM kaoms one.