Alright, here's some constructive feedback, starting with the good:
Compared to last trove, this one is significantly better. Last trove had upwards of 50 to 60% useless items, depending on personal progression. This one feels closer to 10%...maybe 20% for very advanced players like myself. Well done on that front. It feels like each key has a pretty solid chance of giving something of use. Outfits come up often enough as well, and for a collector like myself, I am quite thankful for this.
And now for the bad: while it is improved, some rolls are just...confusing. Maybe not completely useless, but confusing. There are multiple one and two star rolls that have unusual offerings, such as multiple XP charms of differing values or sometimes the same effective value. For example, I recently used a key, and two of the entries were for 5m EXP charms. Both cost the same, both gave the same XP, but were different items with their own icons. While not worthless, it is confusing and might make a player think that it could have rolled something else rather then duplicate items. I imagine further tweaking will be needed to eliminate oddities like this.
In addition, there are still some unusually worthless rolls: Due to Soul Boost, and the fact we will be getting a second season of it next month, there is no value in the Soul Boost giving anything related to Scarlet Conservatory, as Soul Boost gives far superior everything. Even Steelbreaker stuff may be useless, but since Soul Shield rolls can be bad at times, I'd situationally buy those if they came up if I had a need. The bonus/milestone rewards could also use some work, but I'm not 100% certain what would be good ideas there. I've compiled a list of items that would be completely worthless for me and the majority of my alt characters along with the reason:
Yeoharan's Accessory Exchange Ticket (superior accessories gained though Soul Boost)
Ascendant Accessory Selection Chest (see above)
Classic Agitator Accessory Selection Chest (Upgradeable) (see above, might have minor PVP upgrade potential though)
Thornbreaker Soul Shield Selection Chest 5-8 (see above, and in addition the 1-4 Selection Chest is missing suggesting that it might have been meant to be removed)
Sealed Greater Naryu Sanctum Bracelet Chest (see above)
Sealed House of Idols Treasure Chest (see above)
Sealed Thornwind Accessory Chest (see above)
Heptagonal Obsidian Garnet Selection Chest (far superior gems of these types are available, but might be useful to those with a collection of older gems)
Hexagonal Obsidian Garnet Selection Chest (see above)
Octagonal Obsidian Garnet Selection Chest (see above)
Brilliant Ascension Stone Chest (the game gives out tons of these and of superior quality)
Brilliant Radiance Stone Chest (see above)
As a note, during the last Treasure Trove, we had the Daily Dash running at the same time. I feel this is a must to have...I got ten free keys in total last trove from it, and it actually encouraged me to buy additional keys as those free ones gave me a few great rolls.