I have 5 of them....3 are in use. Best LNB I worked with (and the dual output helps too

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They work great. Only thing to remember is the skew is 90 degrees off. So 0 skew is 9:00 or 3:00 when you start.
Both outputs use the same polarity so if you hook it up to a multiswitch there is no difference which side you hook it up to (there is no 13v or 18v)
yes it will work fine. The 6x8 works the same as any 4x4 multiswitch and that is how I have some of my setups
4x4 with 99W and 105W
4x4 on the motorized for KU & DBS
diseqc switches on some of the outputs to recievers...works just fine