I have both the EDN8 & PowerPak, the N8 wins hands down in my opinion. The N8 refreshes the games menu in alphabetical order when new games are added, the PowerPak puts the new games added to the bottom of the list. N8 loads three times faster and works with many clones. N8 also works we'll with replica controllers, PowerPak freezes when none standard NES controllers are used.
Everything from KRikzz is the best. I have the N8, masterED and TurboED, so far no negative experiences. And I like the idea of supporting small businesses like this, they have so much competition from the Chinese, who have mastered replication. I would rather see my money go to the Ukraine than China any day.