I just received the scope today and put it to the test on a large pumpkin at a local shooting range (I'm a member). The adjustment knob for the illumination is on the 'red dot box's back. When you turn the knob to light up the crosshairs, it also lights up the level bar which is very handy. It allowed me to keep my gun straight for the best possible hop up angle. The crosshairs also have mildots on them for quick referencing. The 3-9x zoom works fine, as it should on scopes that have adjustable zoom.
The red dot and the scope both have adjustment knobs. The scope's knobs are where they should be on a regular scope, and the red dot's knobs are on the box's side and bottom. To activate the red dot, there's a small button on the little tube that sticks out in the back. You have to pull the cover off of it first, and then you can press the button. ((This small tube also holds the batteries if you need to replace them, simply unscrew it)) The red dot is especially bright, and seems to be a 5mw, meaning the brightest legally possible.
The sunshade looks exactly like the front of the scope, so when screwed on, blends perfectly. The scope is very easy to sight in, moving 1/8" per click at 50 yards. The quick knobs for the rail attachment make it easy to plop on and off you rifle in a hurry, though I highly discourage this in the middle of a battle. The lens covers that come with the scope are the cheap bikini-style ones. You can see through them to fire at least, and they fit on with the sunshade, so they'll protect your valuable scope from the dreaded lucky BB that can break it.
If you want a scope that has unique looks, a rare blue crosshair light-up, and great accuracy and extras, this is the one. If you ask me, it was worth every penny.
Attaches to all RIS rails easily
Red dot is especially bright
3-9x Zoom, though only 4x is necessary
Light-up crosshairs are bright and effective
The level is handy for Airsoft
Easy battery replacement
Definitely a unique looking scope
Rail Claw already attached
Comes with a sunshade and lens covers
The price is rather high for an Airsoft scope
Most zoom magnifications aren't necessary/helpful in Airsoft
Rail Claw already attached (Can't adjust scope height by changing rings)