If 40% or more of your customers say they would be very disappointed, then well done, you’ve achieved Product/Market fit (Value proposition)

the ideal LTV:CAC ratio for Product/Market fit is 3 or higher.

The top reasons startups fail to achieve Product/Market fit:
They don’t validate the market need in the first place
They don’t talk to customers
They focus solely on Product, not testing Channels early and often
They mistake “shipping features” for “making progress”

Too many startups skip this step and start building a product prematurely just to realize that there is “no market need” (the #1 reason why startups fail)

Some founders blindly fall in love with the idea while others don’t know (or believe) that they can test the idea without building it.

The goal is to learn, not to sell
Listen more than you talk
Ask “why” to get real motivations
Get facts, not opinions
Don’t mention solutions too early

“Poor distribution — not product — is the number one cause of failure.”

The most common approach to understand your customer’s behavior is Pirate Metrics (AARRR), created by 500 Startups’ Dave McClure.

Generally speaking, a 40–20–10 retention (D1: 40%, D7: 20% and D30: 10%) is considered good. Though, what good looks like totally depends on your product category

Stickiness is the ratio of Daily Active Users (DAU) to Monthly Active Users (MAU), which is a popular metric among startups to gauge user engagement

The ratio is typically 10–20%. Over 20% is good and 50%+ is world class.

A good growth rate during YC is 5–7% a week. If you can hit 10% a week you’re doing exceptionally well. If you can only manage 1%, it’s a sign you haven’t yet figured out what you’re doing.