vtec controller

Has anyone had any problems with their vtec controller? Has there been any engine trouble with the use of the vtec controller?

vtec controllers are great when used in an ls/vetc with a stock ls ecu. vtec controllers used in gsr's and itr's with stock cams are a waste. when using stock cams and a vtec controller you are actually loosing mid range power. to see the full benefit of a vtec controller have after market cams and have it tuned so there is no dip in the power band.