I like how it helps me track my risks versus assets within our IT infrastructure; this gives us confidence when we deploy new software or services from vendors because they are audited by 3rd party independent consultants who have no conflicts with them (like ourselves).
There's nothing really i dislike about whistical but if you're looking for something more robust than what other providers offer then give their service your best shot! It has had some great success stories as well which makes sense since its such useful tool - so definitely worth trying out first before deciding whether there might be better options available around town? We use WHISTICAL every day at work now where risk management/penetration testing etc., This allows all staff including non-technical people understand threat landscape very clearly without having any specialist skills required just training through webinars provided online via website link given after completing sign up process.- Risk awareness level increases drastically among user community resulting into secure environment being created across organization along whole value chain.