I think it is cool that Dodge has a specialty truck. It is different, which will match some peoples preferences. I love my raptor. It feels light and quick. It is also perfect for off roading in baja. PERFECT. I wouldn't trade if for any other truck for that reason alone.
I have been running sections of the baja 1000/500/400 for a few decades now and my Raptor is so insane. I wonder how the TRX would compare in that type of off roading. Probably not that well. The Raptor was engineered for it. The TRX will out perform the Raptor in other areas for sure.
I hope the TRX is really good off road. We already know it is going to be fast in a straight line. Really fast, with a bitchin' supercharger whine. Motorsport racing/enthusiasm is better with multiple manufactures.
Toyota will never be there. I don't care how long they run. My 1983 moped still runs like a champ.