The license for the proprietary layout engine (TALA), was quoted to me as US$240 for 12 months of updates. For comparison, a personal license for IntelliJ IDEA Ultimate is US$169 (for the first year; less for subsequent years). As an active user and proponent of text-to-diagram tools, and as someone who isn't shy about paying for software (including my personal IntelliJ IDEA Ultimate license), I'm keen on buying a better layout engine, but IMO this price-point is a bit much.