Their team profile is also important to choose, make sure we see how active they are for the project with other teams that work, usually the project will be good if the team is really working well and is active, another thing that needs to be seen is the concept of the project is it good enough for the future, what you invest is also quite good, but you need to also read about IDENA with the proof of person concept, where this concept no one uses besides them, look for something that doesn't exist yet and maybe has a good future, just look my signature
And even though you have checked the team and thy look good make sure to check their past projects because sometimes the team is good but what they start they are not able to gain much success which you can easily understand from their profile and the success of their past projects and if they are not able to keep their words on past projects there is no reason to believe them this time.
I have often seen some big names in the ICO and a lot of hype but the team doing it only has big names and no resume to back their abilities and promises so keep checking all their past records.
Apart from these you must check their whitepaper because whitepaper is like a mirror of the project and a rushed whitepaper would never succeed while a whitepaper that has been actually written and described with precision usually goes good in long term.