Pros
Sometimes, there are opportunities to meet household names. No smell marijuana.
Cons
If you are interested in conservative, old-fashioned Japanese cultures and look for an entry-level position, you might work but “limited time only” Otherwise, you will be wasted your time. The work environment is not global level- antiquated Japanese level: not only low paying but also endless work, a few paid vacations; feel like a slave. They are very demanding and you may have to wear many hats. Use everything in the company as much as you can, then go to the next place. It is quite hard to maintain work-life balance and keep your motivation at this type of the company. They live in their own tiny world. Their style is completely opposite of "side with the weak and crush the strong"