Honestly, the series has ups and downs. Still, amazed to see someone never try any of them. Good news is that FFT requires no prior knowledge of the series. And it is one of the deepest strategic RPGs in existence. Tons of customization for your units, battles that will challenge you, a difficulty curve that, especially for newbies, will most certainly not hold your hand. It’s fun, the story is amazing, the music is enjoyable, it’s the total package. Will last you dozens of hours.
For what it is worth, this is literally my favorite video game ever. I have beat it over twenty times with at least half a dozen gameplay variations (monsters only, Monk SCC, no unique characters, randomized classes, ONLY unique characters, and so on)