I've played Final Fantasy Tactics some three times in my life, but I never finished Tactics Advance as a child with a GBA, so I'm finally playing through it now.
About 20 hours deep and it's got a really great addictive quality in its job and skill system. I also really appreciate its smaller and more bite-sized scope: max of 6 on 6 battles on smaller maps is just way more digestible in smaller doses and it's a little bit of a nice change from the original.
It certainly is still frustrating at points, mostly in regards to how low hit percentages are (even when on the sides of enemies). It is funny that some of the key mission issues from the original weren't corrected and were instead leaned into. Namely, some multi-part missions that culminate in a 1:1 fight which you now 1) can't save before and 2) can't edit your setup for. Confounding!
The game is certainly not as big of a Moment as the original Tactics, but it does feel like a bit more of an overlooked entry in the series upon reflection. And somehow I'm still committed to playing it despite me owning an unopened copy of Triangle Strategy begging to be played.