Other than the % fee on ad spend, are there any other monthly fees or setup fees?

No hidden fees, no bs. Only the ad spend fee

Here's the fees:
Prices based on monthly spend:
€0-100k Monthly Spend (5% Fee)
€100k+ Monthly Spend (4% Fee)
€200k+ Monthly Spend (3% Fee)
€300k+ Monthly Spend (2% Fee)
€500k+ Monthly Spend (1.5% Fee)
€1m+ Monthly Spend (1% Fee)