As long as you think they are safe, then you should invest.
The project I am invested in is a arbitrage trading bot
Right now I am invested in EVOAI because

• They have a working product and we haven't even finished the ICO yet
• They have interviews with their team
• They straight up have a better product than competitors (it pays in ETH)

You can find more at http://evoai.network and join the telegram at t.me/evoai