Money-Sink!!~

...actually not that bad...I mean in my case still bad...here is my good/bad take:

Good side: Compared to the Elite Guard events, this isn't incredibly money-consuming unless you're desperate to take the top (which you really shouldn't be, new cards in this recent update ask you to gather enough bouquets, finish all stages, place rank 1000 or less overall, and get the 6 E-gacha characters). Worst case scenario you'll probably manage to get most if not all the new girls with $150 compared to the last Event's $500 or being a friend to 2+ cash whales.

Bad side: Due to unexpected rl circumstances, I can't even afford $150 (zing!)

For this event in particular you'll probably only need to spend hard if you find yourself tremendously behind in the event either because you came out of hibernation half-way into the event or haven't had the time to log in and keep up regularly with the bouquet collecting. Hurts doubly bad if your friends list is full of inactives.