To be honest, the Duel Decks sound like a great idea. No, they're not super fantastic decks, but they're a step up from the intro pack decks for sure, but still completely playable out of the box. I picked up the Duel Decks Anthology, which has reprints of the first four Duel Decks, as well as a recent Duel Deck, Jace Vs Vraska. We use them in my group of friends when someone doesn't have a deck or when none of us have matching balanced decks (standard, modern, casual, etc). It's definitely not tournament caliber, but for a fun night at home with friends or family, it's a pretty nice product.
UR ....... WUBR ........... WB ............. RGW ........ UBR ....... WUB .... BGU
Spells / Blink & Combo / Token Grind / Dino Tribal / Draw Cards / Zombies / Reanimate
UR ....... WUBR ........... WB ............. RGW ........ UBR ....... WUB .... BGU
Spells / Blink & Combo / Token Grind / Dino Tribal / Draw Cards / Zombies / Reanimate