I'm curious about a couple of things. 1) Why did you remove the outer case from the dongle? 2) Why didn't you plug the dongle directly into the Pi? I wouldn't call it cluttered, actually I think you did a neat job packing all that in a little box.
1)Part of my logic was to allow the dongle to dissipate heat a little better and also just to slim it down a bit. Initially I had a fan mounted on the lid of the box but I thought it may have been introducing a bit of EMI so I unplugged it.
Everything still running OK, highest internal temp I've seen is 56c with the rPi's core at 65c. I've got a DS18B20 onewire temp sensor connected to the rPi's GPIO.
2) Direct connect would have been ideal but the dongle's antenna connector + sma adapter + flylead wouldn't fit in & would hit the side of the box. Probably a bit of pre-planning and thought could have solved that, but oh well!