In perspective:

Relic Weapons - Powerful (most anyway), takes months to years to complete.
Mythic Weapons - We do not speak of these, but even longer to complete and are same strength, some lesser, some more so than relics.
Empyrean Weapons - Takes a week or two to complete in right conditions and blows away Relic and Mythic weapons.

Most of the Empyrean Gear, known as AFv3, blows away quite a bit of "standard" gear like Sea/Sky/Nyzul and Salvage gear, while you can now upgrade sky gear, Empyrean Gear is significantly better for significantly less work.

http://wiki.ffxiclopedia.org/wiki/Bale_Attire_%2B2_Set

And my Empyrean Weapon (that I chose at least):

http://wiki.ffxiclopedia.org/wiki/Redemption_%2890%29

Throw in Atmas and stat boosts, yeah pretty much blows away the equivllent Relic weapon and can be done in a week or two given amount of help you have and who has the pops.

So it's really up to your personal preference if you find this good or bad.