The product is aimed at shops/mechanics that make money building wheels. Time is money so building a little faster is more profitable. Or a better result can be

The product is aimed at shops/mechanics that make money building wheels. Time is money so building a little faster is more profitable. Or a better result can be delivered in the same amount of time. If you like it will give you PDF output as receipts for your efforts, for example to show before and after snapshots of a wheel under repair (essentially for free). Little things like this can differentiate one service provider from another and/or help justify shop rates.