Eh, I really like the story portions of Xenosaga (it's a glorified cheap CGI movie anyway) but the gameplay isn't very intuitive or necessarily balanced. I got frustrated before the midpoint, level grinded and then ended up designating Kos-Mos as the powerhouse, having Momo capable enough to heal/defend adequately and doing whatever the fuck with the rest of them as it seemed appropriate as they were all over leveled. That's not the fun, or natural way to do it, but the boss battles annoyed me so I didn't want to redo them anymore than I had to.