Freetrade Crowdfunding - Best UK startup investment opportunity of 2018?

Freetrade - a UK no-commission stockbrokering app just opened their 2nd round of funding in Crowdcube. With prospects to be as successful as the US app Robinhood, their current £18,000,000 valuation seems to be a prime opportunity for investment.

https://www.crowdcube.com/companies/freetrade-2/pitches/b3M2Ql

I have a place on the app waitlist so I received an early opportunity to invest yesterday, which I took quickly as the initial target of £500,000 of funding was met in 12 minutes. Looking at their investor pack and the chats going around everyone seems to be confident that this will be a profitable venture.

According to a Forbes article (link below), Freetrade see Revolut as their main competition. I joined the Revolut crowdfund last year and indeed the value of my shares have more than tripled in around 6 months.

Is this deal too good to be true or do you have doubts in this crowdfunding opportunity?

Has anyone else invested in a fintech start-up recently?

Additional reading:
https://www.forbes.com/sites/oliversmith/2018/05/16/britains-take-on-robinhood-is-crowdfunding-1-3m-to-bring-no-fee-trading-to-europe/#20940abc10e1