Wow, since my name was thrown around here let me rebut. :lol
The rom board is ok but doesnt give the correct voice effect. Neither does the plecter ripoff (the video on that is pretty funny). As for setting ours up, feedback issues are strictly a function of mic and speaker, not our board. So that is an unfair assessment. And if you are having bad feedback, use the PTT function - it is bulletproof.
Then again I am biased, that is no secret. But seeing as I am the original developer of the trooper effect for over 10 yrs, it says something about our quality. If my unit stunk so bad, as you put it, people wouldnt be buying them. It's funny how many UK/Australian guys buy my voice board, when the rom should be more of a bargain for them.
I generally steer clear of threads like this, but I like to keep the record straight. In the end make the decision for yourself. I am always around to answer questions (technical or not).