We have used this product for some time now (about 4 years) as part of their enterprise class offering called "Delphi". It has been very stable throughout that period - nothing I can think of so far where it had any issues at all! The customer support from them also helped us get through those times when we needed help or advice during implementation etc. Nothing really comes up too often but they are always quick enough to respond if there's an issue you need solving/advice given about something specific related to your use case / project. Some things could be improved though e g better documentation available online maybe? You should definitely give delphix another try before deciding not to go ahead because its price might seem high compared to competitors products out there nowadays. They do solve business problems by helping companies move towards being able to handle large amounts of big datasets without having tons of hardware resources which would cost alot considering how much money businesses spend these.