Proposify's editor
The biggest public gripe about Proposify is their editor. The thing you'll spend 98% of your time using. It's riddled with hundreds of different options, not too different from the thing they designed it to compete with - inDesign.
Better Proposals doesn't have this issue. Our Preview-On-The-Fly editor doesn't make you choose from hundreds of fonts or every available colour. No doubt, Proposify's editor has a lot of options, but if you want ultimate design flexibility, you don't need to pay $100 a month for that. You've got it for free. It's called Microsoft Word.