Well i order my moon light system last week and came in this weekend.
Scale 1-5 1 very easy, 5 very hard
Install was about a 2, Was pretty east but did have to drill.
Lights/Construction 4.5, Everything is really good but is home made so looks like its home made a little.
Lights them self 4.5- For my tank its bright enough to see the fish, but not birght enough to see color/or detail\
I would recomend getting the 4 light system like i got for 10-20 gallon and for a 30+ 6 light system at least.
Im going to add another 3-4 light system on another switch.
Also one thing i did not like about system is if you want to turn it off you have to un plug it or do what i did and add a switch (2.99 radio shack) and install it in your hood.
Installed

Switch
