Does anyone have experience managing per-seat billing with Paddle?

We're setting up our payments process, and have gone with Paddle as a payments provider.
Does anyone have experience with how per-seat billing is managed in Paddle? It looks like they use 'Modifiers' to adjust the monthly price when customers change the number of seats in the plan. It seems like it could create a lot of unmanageable noise in Paddle and potentially on customers invoices too... Any advice from experience would be appreciated! Cheers!