Quote - :P

The only problem with "sucks" is that it doesn't really say anything at all about what you feel are the actual shortcomings.  It's just a general blurb of disapproval.  I think it's better to say something like the "lighting looks flat", "the interface design just doesn't feel intuitive, commands are scattered all over the place".  And so on.  That's far more useful and in a way is constructive.

Ah, you need specifics.