Accenture

Office location and layout/decor (not much else to say).

It has a lot of people because they are always hiring.

They have to meet some quotas about hiring women, which causes some under-qualified people to get the job.

You may be an intern, but you are expected to perform as if you are a senior developer. You'll be in touch with clients, deploying things into production with little to no oversight.

Most projects are a mess, and priorities are completely switched.

They'd rather spend money on nice/fancy lunches with the team (to teambuild) than give their developers the right tools to perform their job.

And, because it's such a big company, you will be just another number for them. I had a career counselor who had no idea who I was.

Plus, the weird hours in order to have some extra days off are not worth it. You'll have no life for 8 months so you can have another week of vacations.

The working environment is very toxic because you'll be ostracized just by leaving on time, as you are expected to always stay a bit late so the manager can see you "grind".

Be better at recruiting and have more senior people helping/mentoring interns.