Uff, now after a few search queries i found your recommended article about Aventus ICO. Thanks a lot! My opinion is they have some points which their competitors not have. There was a discussion with direct comparison (source lost) where they are had an visible advantage with clear arguments.

always have a strong tech lead and a communicator

On the tech side i think it's crucial to have always a strong lead and he must not the best in marketing and connecting to people.

That part is for other people (i think a tag team is best) but it's always concerning for me if the team is hiding (aware or unaware) or it's hard to get to a channel (e. g. slack only is hiding for me) because to build a relationship to your investors, think of they are human beings you must interact with them in a open manner to get their trust. Slack only is geeky.

see the team in motion

The best medium i've seen so far are live webinars, Vlogs or recordings of events where you can see the people on the other side and behind the scenes and have the chance to post messages (live or board) and get quick response from them. My best example is TenX they have done a great job from the marketing perspective.

There was so much trust in their team and the future prospects because they communicated so well and directly to their investors and were multiple times more effective than other ICO's who had such a low frequency of communication which can be deadly whether or not you have the best intentions. Low frequency communication means also for me to get the profiles from text information. A way better is an life introduction within a webinar it's so convincing. Without a doubt you need also a leader in that field who motivates and coordinates the team members to use the camera as tool to directly connect to future investors and customers. But I don't understand why so many teams don't do that or do it not seriously. The outcome is much greater than with all the other media. And my goodness! Aventus is in the entertainment business not finance like TenX. Who knows better what's happen on stage! Here are two founders Alan Vey and Annika Monari in amateur video in a not so convincing environment but with good explanation

A professional and informational video of the technology is always good, but not enough

my verdict for Aventus

I'll give it a chance with a smaller amount but also have some doubts you had already mentioned and wish the best that Aventus accomplish their goals for fair ticketing!