First initial impression: \"WOW! this is a high-quality item!\" Second impression: \"WOW! this thing is uniquely well-packed!\" (Those who say they are missing the large blue knob.... it's there well buried beneath the foam packing hidden - hence the label \"peel-a-boo\" on the packaging) Third impression: \"WOW! the reviews were right! There are no real assembly instructions!\" But I had pre-expected that and simply looked at the pictures from the Amazon listing to decipher what went to what. pretty straight forward. Fourth impression: \"WOW! This is a nice quality item and well-worth it!\" Yes, it is indeed a nice quality item. solid, square, well-built, laser-etched markings, quality components. Fifth impression: \"WOW! lots of adjustment screws to fine tweak it\" (I have an older Delta Unisaw. The miter gauge didn't initially fit the slot in the saw. But I simply removed the front 'washer' and rear 'washer' (note: several hex wrenches are included, but not a small one for these). Then the gauge slid nice and smooth. Sixth impression: \"WHAT @#!# !! How am I supposed to use this???\" (1) It is clearly designed for use on the RIGHT side of the saw indicated from the measuring markings etched on the gauge. The ' Additional trim blocks raises working efficiency\" phrase in the item description make you wonder what they are talking about. I cannot (still) figure how to even use this adjustable block. It appears to have a marker indicator to line up with the etched measurements on the miter gauge, but this in no way lines up with the flip stop for measurements! Therefore, one cannot really use the flip stop with the measurement markings. The only resolute appears to purchase a left-to-right adhesive measuring tape to adhere to the beautiful laser-etched measurements on the gauge - then adjust the tape prior to sticking it down to line up with the adjustable stop block from the saw blade to allow it to work on the left side of the saw (or even t