[throwaway77384]

I have only ever run into dealing with InfoSys' services (back in 2011 or so they provided the entire media / marketing / advertising tech stack for Diageo, called Neo at the time).

Complete black-box. Impossible to work with. Impossible to get documentation. We literally had to debug via crash reports delivered to us every 24h. Of course it was ALWAYS their machine images somehow differing from their environments, so our tests passed locally and then failed in their black box.

Horrific performance problems (think services locking up at 200 concurrent connections...for mobile apps, when advertising-apps were still a thing. Released across virtually all pubs in a whole country. You can imagine how that went).

Of course they would continuously blame all their issues on the company I worked for at the time. And Diageo even fought tooth and nail to defend them. We had to waste an insane amount of resources just proving to them that their system sucked. Easily one of the worst examples of a company wasting huge amounts of money, thinking that outsourcing would save them money. It's so stupid.

[esotericimpl]

I worked with them on crown royal.com and everything you say is 100% true

Nothing ever worked and their technical stack was an absolute joke.

Eventually the agency lost the business due to not delivering, which was solely due to their platform not doing anything promised by infosys.