the loyalty program or Tokenloyalty.io is the best loyalty program, which not only benefits the merchants / service providers but also benefits the customers.
very good, but unfortunately he uses waves, because many projects that use waves, many fail, unfortunately if this project also participate failed.
Waves is a great technology, especially after implementation of NG protocol. For our loyalty program Etherum network would be too expensive and too slow.
That was the main decision to select Waves.
Second was that it has integrated DEX.
Also Waves is implementing in 1st Q 2018 smarts, so it will be another usage for us.
We stick to Waves.