First thing I would have you consider is whether you want a trailer suitable for cooler or winter weather. Even if you don't plan on winter camping, you have to consider if you think you will have to travel in cold temps to get to your destination, as we do when we leave Ohio and travel south in the winter. The added insulation, heated water bay or heat pads on water tanks, double pane windows, etc. make it easy to travel in cold weather and the added insulation helps with the hot, hot summers that so much of the country is experiencing.
If I were in the market for a trailer, I'd be thinking about Arctic Fox, Northwood, or Lance trailers. Then there are other companies that offer cold weather packages for their trailers which can be pretty good, but may not make up for less insulated roof or sidewalls.
Although not a all season trailer, I will say that our 2014 Winnebago Minnie travel trailer was a pretty nice trailer and we had no problems with it. We were able to stay warm on some pretty cold nights, and kept water lines from freezing by opening up cabinet doors where water lines were near. If I still had it, I would be looking at installing heating pads on the water tanks.
Since you are new to the game, I suggest looking at a lot of trailers, and studying them carefully for build quality along with insulation values and what "winter package" is available. Double pane window, if available, really help you avoid condensation in colder weather. Single pane windows end up requiring opening some vents to help with the problem.
And, with the current market, your choices may be limited. Take your time and your patience may pay off!
Retired but busier than ever!
2012 Newmar Bay Star 3302
5 Star Tune, SumoSprings, Roadmaster Steering Stabilizer, Blue Ox Avail
Brake Buddy, 2015 Chevy Malibu