What's this doing differently or better than screamingfrog? Which is also a desktop program and provides quite robust information. SF has been one of the standard industry tools for those doing SEO for years.
I've written a more comprehensive answer to this here: https://sitebulb.com/resources/guides/how-is-sitebulb-differ...
EDIT:
And after about 3hours of crawl, this is what I got (and no way to resume it):
>Audit Stopped! >The audit stopped early because: Maximum Crawl depth limit of 50 reached
>WARNING: Audit Paused ! The audit is incomplete and did not finish properly.
In addition SF works on Ubuntu, which is another point in its favour.
We think it's a case of horses for courses. Sitebulb has the potential to save you a ton of time when auditing and reporting. If you don't do a lot of that then it might not be a good option for you. If you do, that's where a lot of the value lies.
There's a fully featured 2 week trial to give it a proper go, and the monthly billing means you have the option to switch it on/off as you need it.