(tried) other imps, dark timmy, NYX matrix, shockers, DM4
vision is nice to have, WAS board is really nice and makes this gun contend but is not needed. better bolt, trigger after that just go wild if you got money :P there are lost of things you can up.
-Rips with upgrades
-Very consistant for me
-Little heavy for sum people (or at least they say)...
Got this gun used for less than a non - vision impy... and i love it, has never given me any problems. If you get a used impy chances are a 32* one will be cheaper (because of a bad rep and less milling i guess) than most used imps, and it is much sexier than a normal imp...
I would recomend this gun to anyone as it is great and has never had a problem and is easy to maintain.