It was enjoyable at first. Game kind of held your hand, I was okay with that. A little peeved that I really couldn't change anything about my team other than their jobs. Like, when you've got Hope with you, but you can't use him at all.
The Maps were simply corridors. There was no openness to it. No real side-passages, no exploring needed, and if there were any sort of puzzles in the game, they weren't even close to memorable.
By the time I finally suffered through the motions of completing the completely linear part of the game, I was at first excited that I could actually change my team, and have a big area to explore, it was great!
Then I eventually understood that about 1/2 of the encounters in the open area were so powerful, you obviously weren't supposed to fight them, so I tried to find an area that I could possibly fight in, and all I found was another railroad track to glide along until the completion of the game.
Sure I went back to do most of the little "mission" things, but nothing felt really engaging about that either. It was mostly walking from place, to place, to place.
What else... leveling sucked, I didn't really like the break-whatever system where about 90% of your damage came from about 10% of the fight, could only control one char at a time (and you didn't really have much control over them at that), your AIs fighters were kind of morons, and the best strat I found was simply 2 buffs + medic, then commando-2 ravagers, then 2 medics and a buff. Really, you didn't have to do anything but switch jobs and press A a lot.
TLDR; Combat was unengaged, hand-holding went way too long, 'open ended' part was a boring set of kill quests, and the game was overall too easy. No, getting stomped by something that kills your party in one step doesn't make it hard, just means you gotta grind before you can attempt it.