Krater.ai is simply amazing for a lot of reasons. For me, the best thing is the commitment and dedication of the founder. He is active on the Discord server and very quick to respond. He is also open to suggestions in a very kind way. Moreover, he is very concerned about keeping the platform low-cost. For example, he reduced the cost of AI chat models to below 1 credit, with some models costing as little as 0.25 credits, and Llama 8B is available for free. Lastly, I would say the platform is very solid and robust; I've never encountered any bugs myself.