I think it all depends on what kind of exchange IEO will hold and how popular this exchange will be. I think if one of the popular exchanges to confirm the listing of tokens in advance it says a lot.

If there is no listing after ICO investors cannot sell the tokens of the project. If project has a platform, they can use tokens on the platform. But usually such projects does not have a working platform at all.

each service provider will contribute to the consumption of LEVL. That's great. For investors, too, access to the project will be open with the help of LEVL?

I don't know why you even talk like that. First of all that's no amount of money to end your life. Secondly, if you haven't sold, you haven't lost anything. Put your coins in a paper wallet And forget about them for a year and come back and be happy.