Built a custom operational Live Floor Tracker for booming "Art Cafes" / Time-as-a-Service niche using Retool. What features should I add next? What am I missing?

I’ve noticed a massive surge in "Art Cafes" and DIY craft studios popping up lately. They operate on a fascinating business model - essentially "Time-as-a-Service" (TaaS) - where they sell a 2-hour window, provide art supplies, offer a complimentary tea/coffee, and upcharge for actual premium food items.

Most owners I talked to are hacked together on spreadsheets, physical timers, or standard retail POS systems that don't natively track time-spent vs seats occupied very well.

I wanted to challenge myself to build a dedicated operational engine for this niche using Retool's new app builder. Here is what I have up and running in the live MVP:

• Active Studio Floor/Dashboard: A real-time grid dashboard showing active tables, color-coded statuses (Active vs Completed), and live tracking.
• Customer Walk-In & Check-In: Form to register a group, auto-calculating base rates upfront based on head-count and hourly rates.
• QR Booking Flow: Public-facing side where a customer scans a QR code to book a slot or see current open tables.
• Transactional Logs: Ability to seamlessly click a live table card, pop up a modal, and append priced food items/extra materials to their session tab.
• Inventory & Menu Engine: Back-office dashboard for the owner to tweak per-person hourly rates or change pastry/beverage prices.

My question to the community:

• Should I prioritize automated SMS alerts when a table has 15 minutes left?
• Do owners absolutely require complex multi-way bill splitting at checkout for group sessions?
• Would integrated shift-logging/daily cash drawer reconciliation be a tier-1 requirement?

Love to hear your feedback on the layout or features that would actually make an owner switch from standard spreadsheets or POS to a niche app. Thanks!