- We have been using QuestDB Cloud continuously for months to store weather data from sensors, and the price/ performance/DX ratio is hard to beat. Compared to well-known time series databases, QuestDB Cloud is by far the best tool for our needs. - Thanks to the open source Docker image, we were able to add QuestDB to our local development environment in a matter of minutes. - It's easy to use, it's so fast and it just works! - The developer experience is wonderful: everyone in the team has a great time working with it, and QuestDB appears in the "what went well" in every sprint review. - Really clever extension of the SQL language to make working with time series data much easier. - It's flexible: we can pause the instance, and we can easily increase/decrease instance resources as needed from our account, which helps control the cost of dev/staging instances. - The UI is responsive and well thought out, and the monitoring tool is very useful. - Documentation is clear and detailed. - The support is fantastic: very responsive and really helpful, with detailed explanations each time that have helped us a lot! And unlike other managed solutions, support is included in the price. - New features are released regularly and the roadmap shows exciting things to come. For example, cold storage support for old data is coming soon, with the ability to query this old data. This feature will be a big plus for us.

QuestDB shines as a high-performance, time-series database that seamlessly integrates with our renewable energy telemetry platform. Its exceptional ingestion speed, capable of processing millions of rows per second, aligns perfectly with the high-velocity data from our sensors. The SQL and time-series extensions offer a developer-friendly experience, making it straightforward to create complex queries for real-time analytics. Additionally, its compatibility with Grafana enables us to effortlessly visualize data trends, historical records, and sensor data, providing invaluable insights into our operations. The open-source nature of QuestDB, coupled with its enterprise-grade features like role-based access control and multiple availability zones, offers both flexibility and reliability, ensuring our data is not only accessible but also secure.

We have been working with the QuestDb Team for a couple of years now and the level of support the Team provides is outstanding. The features that were critical for us got implemented and the quality has always been at top level. Balance between performance and features is always a challenge and we have not yet experienced loss of performance even though the list of features have grown considerably.