Pros
If you want to work on projects that make a meaningful difference to the UK and not just someones shareprice you should choose Detica. If you want to develop yourself And be recognised as a specialist technical consultant (whether its in digital, data or cyber security or a market like Telco, Government or FS) rather than a generalist consultant working on spreadsheets again you'd choose Detica. If you want to innovate and you have the initiative to build your network rather than expect someone to hold your hand then you'd choose Detica. Its the expertise of the people that mean you have to up your game and you learn fast as a result. Working on projects with a wow factor, with big name clients is a big motivator. Being able to deliver on the leading edge of industry trends like digital transformation, big data, open source or cybersecurity builds confidence. I've worked for and with every major consultancy and SI and most are all talk in these areas.
Cons
Too much of the media profile relates to cybersecurity, so overshadows the bulk of what the company does.