Time Attacks are always a great way to challenge the community and with SR5C it will always set apart the top tier linkshells from the lower tier.

There needs to be more diversity in challenges though for endgame content. If all of our instanced dungeons are nothing but Time Attacks for the best gear, SE has failed and needs to go back to the drawing board.

Hopefully though, 2.0 will usher in lots more in terms of diversity.