Some subscriptions specialize in bringing you variety. You’ll always be surprised by something new. Other subscriptions try to offer “year-round” coffee where they strive to deliver a consistent taste.
If you’re a coffee enthusiast who wants something exciting, the first option would be good for you. On the other hand, you might want the second option if you’re someone who prefers stability or you’re getting coffee for a situation where you want it to be predictable, such as an office.