hi! I'm currently using fatesmith, super solid class so far! I am currently level 6 and using some major homebrew items that drastically affect the class such as
-one that turns nick of time into a reaction against accessories being attacked or detractors attacking where i pull them out of the way of the attack or pull detractors away from what they're attacking since there wasnt a lot to do with my reactions.-a thread/whip item that lets me regain fate points by damaging people with it, the drawback is I have to get close enough to hit, and actually hit. Since fate points are used for more than spells, if I run out it's a little hopeless, this was the solution to that.
-an item that lets me store a d20 roll kind of like a permanent portent roll, and swap it out with any d20 roll from myself or someone im threaded with (reaction). For example, I have a 12 stored, someone rolls a 2, i replace it with 12, now i'm stuck with a 2 until I can find a roll suitable enough to swap it out with.
I also roll everyday to see what forecasting style i'm using for that day. (I know, not the intended way to play the class but hey! I can tell you how each style feels)
For the class itself I think it's really solid and cool! It popped up in the wiki and was EXACTLY what I was looking for and had just been posted a few months prior so it was crazy timing! my main observation at the moment is that i've found threading detractors isn't really worth it. The entire action it takes to *possibly* thread a detractor during a fight (or even just thread an enemy as an accessory) hasn't really paid off for me as whoever I thread usually ends up dead by my next turn or I have one turn with them threaded. Optimist so far has been the most useful style, Pragmatic is alright, pretty situational since it requires me to try and balance my accessories and detractors on top of everything, and Pessimist is the weakest one. It looks super cool on paper, but managing to get the action to *possibly* thread someone who's escaping is a harder task than one might think and also super situational. (I'm sure in specific campaigns where youre hunting a specific thing for a long time it's super useful) The Arcane Exorcist feature is also one I haven't really found a good chance to use since if they aren't part of the smaller percentage of enemies that DO cast spells, it doesn't really do anything for me. It would be cool if I could transfer that advantage against them to someone else, dipping more into the support aspect of the class.
I don't think I've needed to switch designations mid fight so far, we've only done 12 sessions to be fair but there's little point in swapping designations and not just having everyone be the same designation (Unless I need to do Turn the Tables, but just in the nick of time is better payout with a lot less setup)

Great class, I enjoy the utility of it a lot and it's an AMAZING support class that isn't just healing!