While its hard to define exactly what makes a Magic set good overall, theres a lot of specific qualitative boxes this one has managed to tick
Broken Bond seems like a great addition to any Landfall deck or basically any deck that wants to be running Explore: Azusa, Lost but Seeking, Mina and Denn, Wildborn, Omnath, Locus of Rage all love flooding their hands with lands and then slamming them into play as quickly as possible
In Historic, we don't have real Dark Confidant, and even our "bad Bobs" are limited to Glint-Sleeve Siphoner, which mostly is useful in an energy deck
Wish Wish is an absolutely ridiculous Rare Red Sorcery that costs only three mana to play, including one Red
Some creatures with kicker, like Keldon Overseer, have enters-the-battlefield triggered abilities that trigger if the spell was kicked
You can have 20 of each, but many players like to tweak this number further