It was kind of fun collecting everything, but I was at least hoping for a "thank you" from Relicmaster Granadir.
I don't care much about a "fabulous" reward or anything, and the achievement is neat. But I was at least hoping for a few lines of dialogue to put an exclamation point on the triumph. Like, "Wow! You found them all! Thanks for ensuring these powerful relics don't end up in the wrong hands. Thank you, adventurer!"
It just feels empty and anti-climactic after all that trouble.