D6 pool systems and aspect and free form magic systems are in fashion right now. EZD6 has the typical issues of those.
The difficulty of a roll can be both regulated by changing the target number or by adding boon/banes (extra rolls). Even if the former is favored it is not always clear which one to use and sometimes it is advised one or the other, without considering probabilities. In a section, the author even suggests using the critical exploding system.
When creating a character, Aspects may easily overlap with inclinations or even classes. Magic also requires tuning spell effects, number of dice, etc. It is not a system for new players, much less new DMs. There are two meta-currencies to track, karma and hero dice. Each with its own particular rules and a magic variant, spellburn.
Finally combat is not simpler or faster than basic d&d. Both the attacker and receiver have to do one roll (with numbers that vary depending on class and monster) so we are at the same or more complexity. The author even acknowledges this by making combat asymmetrical, monsters don't roll for defense/armor. Instead the DM just adds strike/wounds for harder foes. This is quite a mental overhead for a system promoted as simple.
Playing this game requires extensive experience with d&d and even narrative systems. Something the author does not see probably because of his own expertise, but the book fails to explain many things clearly.