I have a completely opposite experience. DS4.1 and Mimo v2.6 take too long to finish a task, not worth it.
For example, there's a lot of people saying luna from openai is bad. However, that is simply not true. They're using it as-if you can talk to it, similar to how you would talk to a human, but what you actually want is combining it with something like prewalk from omp where you have a socially(?) smart model start the work and once the first edit lands switch to a cheap alternative like luna to finish work.
Luna and in general, smaller models, will struggle to understand the intent and complexities behind human language.