ข้อดี: Previously, I had my 2" filters threaded into an adapter in the image train. Changing the filter required disassembly and re-assembly - not fun in the dark. I have two filter drawers - one with a dual NB filter and the second with a luminance filter - and now changing filters is easy.
ข้อเสีย: The filter holder and drawer are well made and the drawer is secure when on the scope but if you bump the filter drawer it may fall out so be careful about that. I remove the drawer before mounting/dismounting the scope.
I took this Telescope because the 10 inch GSO Dobsonian was sold out. After building a Rocker Box myself, i tried it yesterday and i am very happy with it. The shipping was super fast,- all perfect.