Oh hey, this is my site (Punchline Copy)! Glad it's interesting to you. I can say it's been a super helpful way for me to both cut down the time I spend scoping custom projects, and for potential clients to understand what they'll invest to get started working with me.
All these weird prices ending in 7–Is that something you arrived at by A/B testing or something else? Just from first impressions seeing $397 made me notice the prices much more than, say, $399 or $400.