The only downside is that it doesn't have some more specialized cards like Timaeus dragon (which is essential for Dark Magician Deck for the dark magician dragon with eternal soul + magic circle) or some Cyber / ODD eyes.

Now it's perfect for Starting. With 3 of these, you can make a Decent Dark Magic, Legendary Knights, Red Eyes, Cyber end, ODD eyes. If you also get the Legendary decks II x3, you have 8 decks at a good price with cards to put in other decks.
FINAL cost for everything is €120 instead of buying a deck from the yugioh market with shipping or German/Italian editions.

We are always talking about NON-competitive or Challenging game; for competitive, go for packs