I'm working on a B2C software offering where billing is heavily usage-based (because i'm unifying a bunch of APIs together in my software that I still get billed for).
Here's what's making me interested in GetCheddar when compared to Paddle and Recurly:
Doing a few searches on IH it looks like Paddle is the most popular solution. Paddle gets a few mentions. Cheddar, not so much, so I thought i'd proactively look for some feedback.