This is not a feature-table fantasy. Spreadsheets is often strong in: Unlimited customization via formulas and macros, Pivot tables and charting, Free and widely available, Familiar interface for most traders.
Tiltless is strong in: Automatic trade syncing from Bybit, Hyperliquid, Binance, and more — zero manual entry, Session grouping with behavior tagging (tilt, FOMO, revenge, fatigue) tied to PnL outcomes, Weekly review loop with enforceable constraints: one edge, one leak, one rule, Built-in position size calculator, risk-reward tools, and drawdown tracking.
If Spreadsheets already matches your core needs, you should stay. If your bottleneck is execution quality under stress, switching tends to pay back quickly because the review output becomes enforceable.