Flatwoods II 4-Person Tent

I own 3. I think this is reasonable for one with multiple camping situations. Really like this one you've posted in the photo. The older I get and the more tents I buy (and often let go of), the more I appreciate the dome setups. I have two identical Coleman's Flatwoods II with 60" headroom that are my go-to even when solo camping. (No backpack camping) When cared for and stored properly these are an ace-in-the-hole. All criss-cross dome setups are subject to pole deterioration so I don't count that against the manufacturers.

I probably use my 4-person Coleman tent from Target more than I use my 2-person Marmot because it fits my family. By myself, I'm choosing the better tent every time. The Marmot is basically the same as the REI halfdome. A bit heavy for backpacking but light enough for a few days on the trail. I will say the biggest obvious differences are the ease and speed of setting up, the smoothness of the zippers, and the strength of the aluminum vs fiberglass poles. Those make a big difference in the day to day use. The finer points are the seam taping and sealing, the screen quality, and other details that make a difference but you don't notice right away.

6 person tent is nice and roomie but you only need a two 4 person tents. I'd go Coleman as a basic tent it comes with everything but a tarp to lay under it. Scouting they usually tent two to a tent with smaller kids having an extra person in their tent.

My 4 person Coleman has held up for years with me and my 2 dogs camping 10+ nights a year

I have used my Coleman 4 person for solo trips for about 3 years now and have had no issues at all. This includes a storm with 50 mph gusts. Besides the money, I think Ozark Trail offers more variety in design than Coleman, so that may fit your needs better. I cannot speak to it's durability as I haven't had any personal experience, but everyone I know who has one is a fan.