We have 13 Winnie Journey, 40U. Three 13.5s. We are in the DFW.area. Highs in the middle to upper 90's, high humidity.They are kinda keeping up. Warm late afternoons, what with aft. Sun coming in the front window. Have external solar shades,plus the inside solar and privacy. Temps in the front window are in the 80's inside. The colmans have done ok. Had to replace the exhaust fan blades three times. When they have came out with upgrades. Still quite noisey in side. So far so good on them keeping running. Summer isn't over. Having more slide issues. Have a good summer.