Your panel should work out well. I've heard good reports for all the portable panels:GoPower, Renogy and Damp. I have the Zamp 200 and used it for a couple of season directly connected to the batteries. I had 200w installed on the roof last winter and now use it to supplement my 200w roof solar. I removed the Zamp controller and it plugs into an Anderson connector in my hydraulic brake controller storage compartment which is connected to the BlueSky controller mounted inside the trailer. That way if my trailer is in partial shade I can get still get some solar. I have 50' of 6g marine wire for the extension.
Used the system the first time on my trip to Yellowstone. The combination was able to recharge the batteries from 88% to 100% everyday. Had one day of snow and while that day there was no direct sun the pair of panels was able to keep the battery level at 88% so in the late afternoon I ran my generator for 3 hours to get back to 100%. My batteries are Lifeline 6v 220hr. I got a lot of people approaching me to tell them about my portable panel.
You may want to think about adding something like a Trimetric monitor down the road if you are not planning a roof solar so you can accurately monitor the battery state of charge.
2008 Classic 25fb "Silver Mistress"
2015 Ram 2500 6.7L Cummins. Crew Cab, 4x4, Silver