
The North Face
Wawona 6
Spacious vestibule, strong in storms, but rainfly tricky solo.

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Like you, I had a Coleman pop-up for 12 years with no issues. I am also worried about the quality now. I got the Blackberry Skylodge and the poles snapped. It was an awesome tent tho, the bug doors were so nice. I didn't like the T4 for the reasons I mentioned. I now do not have a tent and no clue what to do.
Honestly, I considering getting the same tent. I am just worried about reports that it is not the same quality because it is more money. It was a main pole. I was folding it, like I have done a 1000 times and it snapped.
I'm thinking they backed the trailered boat over the tent because, well... our eyesight just becomes worse and worse the older we get. I'd go with a Coleman 6p 10'×10' pop-up. Coleman tents offer good protection at a great price.
I have Coleman 6 person Instant-Cabin with rain fly. Easy to setup under 5 minutes and big enough for a queen size and double air mattresses with room to spare. Knowing that you have a family and your hands will be tied, this ready to deploy tent will be way better experience to set up than traditional tents and push poles. I've had mine for 5 yrs now it's been a breeze setting up. I've patched the floor here and there due to abrasion against sharp rocks and rocky gravel campsites. Overall it has been robust for the price and have dealt with multiple rainstorms (with the rain fly and never had any leaks) and it's still holding up well. Reviews claim that some have leaks during light rain but I have never experienced any.
My Coleman Instant Tent 6 person has been solid for the past 5 years. I can easily set up everything in under 5 minutes.
Try Coleman Skylodge Instant tent. Extremely easy to use. Only downside is occasional leakage.
I've got a similar issue. I've got 2-3 tents that I've narrowed down to but haven't pulled the trigger. For size, it really depends on if you want lounging space inside. A 3-4 person tent is good for two adults with gear inside. If you want to set up chairs inside then a 6 person would be better. With a 4yr old you might even be able to get away with a 4 person but a 6 person would allow for growth. Coleman and Kelty have a lot of nice tents that would be fine for what you want. A Skydome with the screen room has the vestibule for a reasonable price. Not to mention being a darkroom tent so you're not having to wake up at first light. Something like the Coleman Skylodge would allow you to walk around inside. If you want to use cots then bigger might be better. I went solo camping with a 4per dome and my cot took up most of the space. There's no chance to fit a second one in there for sure.
Big tents are great in theory. However, you don’t always have the right space to put them in a campsite. Keep that in mind because the large footprints limits locations to some campsite I would like to go to. I have an instant cabin tent that solved my space issue. It’s a 6 person Coleman. Not too expensive and has held up

The North Face
Wawona 6
Spacious vestibule, strong in storms, but rainfly tricky solo.

Gazelle Tents
T4 Hub Tent Series
Fastest setup, durable, but bulky and awkward door.

Durston
X-Mid 2
Ultralight, spacious 2P, but not for very strong winds.

Durston
X-Mid 1
Budget ultralight 1P, spacious, but large footprint.

Naturehike
Mongar 2 Backpack Tent (Nylon)
Budget 2P, spacious for price, but not for 4 seasons.

Ranked #1
Durston - X-Mid 2

Ranked #1
Gazelle Tents - T4 Hub Tent Series

Ranked #1
Gazelle Tents - T4 Hub Tent Series

Ranked #1
Durston - X-Mid 2

Ranked #1
Durston - X-Mid 2

Ranked #1
SlingFin - Portal 2