Customers most agreed on the following attributes:
It took a while for the sky to be clear after dark for me to try it out on my 10" Dobsonian. Once I got it aligned, it proved much easier to use for rough sighting than my finderscope. I also installed the Pulser Unit which makes it easier to use with dimmer objects. The plastic case seems flimsy at first, but upon use isn't too bad (it helps keep the weight down). I would keep it in the box when not in use. I look forward to more clear moonless nights to do some sky-hopping!
Easy installation. Variable brightness works well for dim or bright objects. Stays aligned better than finder scopes.
A Terad reflex site is the fastest way to point to objects in the night sky and will help you learn the sky and improve your star chart reading skills.
Excelente instrument. With out any magnification this finderscope can point exactly what you want to see. Has a dimmer so you can regulate the light.
Mounted easily, zeroing was fast and easy. Finds any object quickly and accurately. If you can, also get the antifogging cover and other accessories to keep from fogging. I plan on using a small fan to keep it from fogging. The sight is perfect for my 13" Dob.