Pros
It's hard to really choose the pros of working at IS apart from the 'relaxed' atmosphere and the generous discount.
Cons
This is a company that is so stringy with its money that it would rather let employees go than hold on to them. I saw countless talented employees leave this company because it was too cheap to offer them more money, train them or help them achieve their full potential. Yet the company constantly gives its employees updates on how successful it is and celebrated its obscene revenue on Black Friday (for example) year after year. A real disappointment. Salaries are way below market value. Thankfully I was able to get 20% more salary in a comparable job very easily. This is a very traditional German company masquerading as a trendy start-up. Don't be under any illusions - it's anything but a trendy start-up. This is a company run by middle-aged white conservative German men who go from one CEO position to the next, do basically nothing and get paid a fortune for it.