Yes. I do all of this and I'd estimate 50-100% coding time savings. A lot of that comes from better multitasking over single-workstream throughput, which I suppose might compromise the gains depending on what you're doing. For me it amplifies the speedup by allowing some of my "coding time" to be spent on non-coding tasks too.
But even if coding time is reduced by half, is that worth the downsides? Coding has never really been a major percentage of my time.