Restai vs Presto Voice

What users praise

• • Free and open-source (Apache 2.0), with no vendor lock-in for self-hosters.
• • Broad integration: 11+ LLM providers and 5 vector stores.
• • Includes RAG, agents with MCP support, and a no-LLM visual logic builder.
• • Built-in analytics for token usage, cost, and latency per project.

What frustrates them

• • Security concerns: possible directory traversal and demo lockout issues.
• • Unicode/PDF parsing bug breaks document handling for non-ASCII files.
• • Missing LiteLLM integration limits access to some less-common LLMs.
• • Sparse community buzz—hard to find detailed user reviews or tutorials.

What users praise

• • Vendor claims up to 95% non-intervention on drive-thru orders, saving labor costs.
• • Claims an upselling engine with 88% offer acceptance and 6% revenue lift.
• • Runs a spectrum of Voice AI models to adapt to different menus and speech patterns.
• • Has 15+ years of restaurant-industry experience and national rollout references.

What frustrates them

• • No independent user reviews or community validation of the vendor's claims.
• • Brand name 'Presto' is confused with unrelated products like canners and transit cards.
• • App Store reviews for a similarly named app cite glitches, autoload failures, and connection errors.
• • Tourists report being locked out of the related Presto transit app without a Canadian address.