We have 2 kids and regularly take a third and it has been very comfortable for us. Durability has been good. When bought the trailer, I was dead set that I was going to need to lift it with larger tires, and it honestly has not been an issue for us. It is higher and the overall width is narrower than your average pop up. Unlike a Jeep or truck axle, the trailer axle has no brackets or differential that hangs down low, so clearance to the axle is much better than it appears. I regularly air the trailer tires down if I am going on a Jeep trail or washboard road.
The negatives that I had with lifting it were that the stabilizer jacks would no longer reach and the step would be too high off the ground (which are both easy to overcome, just something to keep in mind). I'd suggest going a season with it as-in and get it into some tight spots, then re-evaluate the need for a lift.
The small size, easy to pull behind our Cherokee, trailer brakes, heater, it continues to be a good fit for our family.
Curious to see what your first camping trip impressions are!