How trustworthy is Coinbase?

Could you please elaborate on the trustworthiness of Coinbase? I'm considering using their services but I'm curious about their reliability, security measures, and whether they have a good reputation in the cryptocurrency community. How do they handle customer complaints and disputes? Are their transactions secure and transparent? I'd like to know more about their track record and any potential red flags that I should be aware of before making a decision. Could you provide some insights into these aspects of Coinbase?