I think that's being a little harsh, Their performance in PCMark has always been chart topping - I'm a bit sceptical nowadays about how much use a 4k benchmark is in gauging just how good an SSD is in day to day use. It certainly helps to be good at 4k, but all the real life and general purpose benches don't seem to care about that much past a certain point.
Despite that, at their current price point the Samsungs aren't as good value for money as the Crucial Indilinx drives thanks to slightly worse Garbage collection (they lose around 10% of new performance in a used state after GC, as opposed to getting back to almost new performance )
Taking this into consideration I feel they need to undercut Indilinx by at least 10%, which they do manage apart from the m225 range.
Still, If you arn't prepared to wait for Crucials to get back in stock It's hardly the end of the world to get a Samsung instead.