This is possibly a quote I will regret, but at this stage I think this is way over priced. This is due to the significant risk of this project being successful. This is a near-impossible project but it is one that if it succeeds then owning just few shares today could be like hitting the lottery in 20 years.
Smart money tells me that a lot of hyped up buyers are filling the order book who will start to dump below the final ipo price in 2-3 months, unless revenue starts pouring in before then.
Ergo, I'm in but I'm waiting until after the IPO. I will revisit this frequently and take my chances on the likelyhood that there will be a selloff. If there isn't, I'll just buy at a higher price when I'm confident in the business model from the results that I see. Yes, this means that I could potentially make more if I'd invest now, but his is a huge risk and I'm rather high-risk averse.
My 2 cents.