Got there, but I didn't really enjoy it and going by many of these posts I was luckier than some others have been...
I didn't like that I would not cash in on completing areas due to the chance of them appearing as a new task. Agree that the "complete n daily task" is just stupid. If you've already completed this, you should get credited for it, not have to wait another day...
Cost me some kobans: 4 x market refreshes (168), and one "replace" (90). Plus those spend kobans tasks, but I only did that on areas where I spend kobans anyway.
I was lucky that I had shards at the right time already, and only got the below 100 shard task when around 900+, so the minor tasks got me through.