At the end I decided to invest in this project 1ETH, because they give a bonus of 50%, an extra potential airdrop and most importantly, their product already exists!
It’s a small investment, but should be yielding fine.
Note: I still have to add the final bonus, which will be received after ICO.
06-04: Bought originally 1200 tokens and received 300 extra. As the company decided to give all non sold tokens as airdrop, I got a nice extra.