The Disguiser is an interesting mod. I like the concept of keeping everything inside. The options to use multiple styles of tanks and coils is a plus. The Disguiser is very well built and sturdy, however it does have some weight to it and it's a bit large.
So far, the battery compartment is one of the easiest that I have used and I would like to see the style on more devices.
One annoying con is that it has an auto shutoff feature after sitting for awhile. Overall, it's a great mod, but because it's not pocket friendly for me, I will probably just use it at my desk.