Contrary to what people here have been saying, the base PSO2 gear is very, very good and in many ways superior to even the best gear currently (Qual de)
4* units can at most with whale affixes (Ael Domina, Might III, Formus Soul, and Mastery III) reach:
7% potency melee, 5% potency other type
1.5% pot floor
No PP, No HP
(1% Melee 1% Ranged bonus on the units themselves)
Per unit. The other setups would give you maybe +5 HP and -2% DR.
A single God Cras has:
6.75% potency all types.
3.75% pot floor
This total means you are going 24% melee, 18% other, 4.5% pot floor, 10.5% DR, 0 HP 12 PP 159 Def.
Against 20.25% all potency, 11.25% pot floor, 17.25% DR, 51 HP, 54 PP 84 def.
And that's with the most expensive affix set up in the game, and +40 grinds on all the Quals.
So you're paying out insane amounts to only win by 3% across all units some defense, and lose out on potency floor, DR, HP, PP, and potency for multiple damage types. I'm not finding defense all that important, and the high DR on the units means I'm pretty happy with what I have anyway.
Weapons are a more reasonable argument, where my Foursis has 282 power and my Nodachi has 243. However, the nodachi also has an 8.5% potency bonus, and a 7% potency floor bonus over the Foursis.
Combine my units with my weapon, and my Nodachi has almost 0 damage variance. Assuming it's additive, I have 96.25%-100% damage variance.
Frankly speaking, the only reason I have the Foursis is for the multi-weapon, and my PSO2 gear will remain relevant for a while. You have to overinvest incredibly to beat them out.