My background is in teaching C programming at the university level and DDD was very helpful there, although not very comfortable to use. For years, I've looked for a replacement and finally found Seer and was very happy with it.

https://github.com/epasveer/seer

Interactive debugging is definitely useful when teaching but obviously teaching is a different context. But Seer is not an educational tool and I believe it will hold up in other cases as well.

Have you also tried KDbg, and if so, what's the reason for picking seer over KDbg?