I couldn't recall how I felt about the game when I originally played it 12 years ago, but it's all coming back to me.
It's actually quite tedious after the rather epic and varied first few hours. It's almost like a template for FFXIII. Walk down a bland, linear path, random fights every 8 seconds, drawn out in game cut scene, tedious trial/puzzle area, boss fight. Not necessarily in that order. It just doesn't deviate from that.
With FFVII for example, you'd get a lot of entertaining distractions, varied and interesting locations, stuff like the motorcycle chase, snowboarding, torture scene, etc etc. There is just none of that in FFX.