I want to just go ahead and say that this event is pretty much balance and good all around.
The legendary map is challenging but it's fair and thanks the dev for not making it part of the 100% event quest completion.
The bazaar has good items and while a lot of it is RNG-based, the shards farm rate is pretty fair so I can't complain about it.
The ladder is good but one problem I have is that I don't particularly like how the event point is random. Sometimes I get 200, sometimes i get 300 in my legendary clear. I wonder if the dev put it to offset the people who buy more energy = higher in ladder but I feel like this isn't the right way to do it.
Overall, good event, not much for me to complain about. Just a bit sad that I used 2000 gems to pull and don't have a single faye.
