Reviewers consistently say Decky AI saves significant time on slide work by building inside existing PowerPoint templates rather than forcing generic layouts. They especially value strong brand matching, consistent terminology, reusable slide libraries, and faster first drafts for consulting, proposals, QBRs, and client pitches, often with less cleanup over time. Compared with tools like Copilot, ChatGPT, Gamma, Canva, Auxi, and Beautiful.ai, users find it more focused on PowerPoint and better suited to client-facing decks. Limits mentioned are assertive default titles, onboarding friction for prompts, upfront template setup, and no web app.