Regenerative braking is often marketed as a primary benefit, but its actual utility depends on the route, battery state, control feel and maker documentation. If you are riding flat terrain or the battery is already full, the feature provides no real value. Even on descents, the benefit is moot if the braking feel is inconsistent or unpredictable, as control always takes priority over a marginal gain in range.
Too often, these features are treated as binary wins in a spec sheet rather than tools that require specific conditions to be useful. If the maker documentation is vague about how the system engages, it is hard to justify as a deciding factor in a purchase.
Does the promised increase in battery range actually outweigh a potential loss in intuitive braking feel for you?