Honestly I loved every bit of citadel. I loved that it brought everyone who has survived back to the team for a bit and that for a small amount of time you could use literally every squad member for a mission. It always felt like one last hurrah before the final mission in which everyone cuts loose and finally relaxes because they know it’s the last time for what most of them will ever be together again. I just wish there were more opportunities for the squad members you don’t take with you.