I may still get a TS-MPPT-45 but until we know what is happening with the trailer,everything is on hold.
It would be interesting to see a side by side comparison between the controllers. Right now I would consider the only advantage in a more expensive controller is more features. Should someone prove that there is something else to be gained, so be it. Otherwise the Eco-w's are functional and as long as they are used properly, dependable too.
BFL
I wanted to mention that there is a person on you tube by the name of icurnet that successfully uses two 150w 12v panels in series. He has a bunch of videos including time lapsed days where he exceeds 20a at times.