Excellent

I use iThoughtsX daily in almost every part of my work: brainstorming, drafting, follow-up of projects etc… I use it also to built knowledge bases. Having tried at least 5 other mindmapping softwares before, iThoughtsX offers by far the best combination of power, flexibility and user-friendliness.
The integration with iOS works well, although I use it less just because of the type of work I’m doing.
Above all, Craig Scott, the creator of iThoughtsX, is very approachable, open to feedback and provides second-to-none support.

Batman421 about iThoughtsX - Mind Map, v3.7