I think it's a great Idea! I've been at Metalab quite a few times now and it's a great place with great people.
Last friday they hosted the first "Startup Freitag" (Startup Friday) to bring people interested in startups together. As Paul hasn't talked about YEurope on friday, I guess some opportunities emerged from that first get togehter.
I'm eagerly awaiting the next one the 5th of May. I left the last one after a great chat at about 3am (if I remember correctly).
While I do understand why people don't like the YEurope copycat from YCombinator, I think the reasons why they did it is obvious: attention and getting the message out fast. Most people interested in startups know about YCombinator and most of them will asume YEurope is doing something similar.
(time might also have played a factor)
I personally know Paul and if you have a look at Metalab and on what he (and the others) achieved there, I think it's a good point to have some trust in YEurope.
Many will agree that one of the great values of YCombinator are connections and bringing the right people together. That's exactly what the Metalab is trying to do and has done really well so far.
(I first wrote that comment on TechCrunch and then copied it over here)