In just a few days I got like 50 emails and as many chat messages, obviously from scammers (unless 22 years old models are suddenly finding me attractive). The event was less than average - 3 min 30 sec to get to know someone is not enough and we just exchanged boring information like job or such. For all I know half of the girls there were scammers too anyway.
Also think carefully about what their "80% get at least one match" mean. It's fair to assume that 100% of women at these events get at least one match (unless there's some really big problem with them), so that's only 60% of men that get at least a match. And that still seems quite high, most likely speeddater is twisting the numbers further and really less than half of men get a match.