Generally average output is better than on other more marketed  servers.
One thing I like about it (apart from nothing hidden part) is that slush is
configuring the pool to work to the optimum and using all your resources.

If there was no pool like this somebody should make one  

I can only make an assumption that mining site and pool don't just build and
protect themselves on off-the-shelf parts so all work is done by Slush.
 
Almost bought 2 x 2 Gh/s Antminer today but the price here is still way off so I
have no choice but to wait for things to settle down.