any minifile users?

http://www.hydro-unlimited.com/index.php?p=2_148

a guy i know is looking at the minifile by these guys and it seems to be ok. can anyone comment on what kind of yield (rough estimates) per harvest one could get using this system?

also, has anyone ever purchased something from this site? unbiased reviews are more than welcome about the hydro-unlimited.

or if this is not that great for complete solutions can someone recommend a proven complete growing solution? it is hard to find unbiased reviews of anything.