PS - I went with the ARB 37 and love it. It is super durable (meaning once I am at my destination, it handles anything I throw at it). It is super easy to maintain (washes out easily), use, and store (the fact that the lid completely removes with ease means you can store it without worry of mold, etc from the top being sealed). All around, great product!
Initially had a koolatron p75. It works well and fits almost flush level with the back seats. However I wanted a real freezer instead. Debated between the cfx-40w and the Engel mt45f-u1 and ultimately decided to pay a bit more for the Engel. It is narrower than the cfx-40w and a bit higher. It is a good armrest for the back seats. I will try and update when I've had it going for a bit. Engel is discontinuing this model for the identically sized platinum version with a bit more tech.
CF3 looks sweet! My parents got the NEW cheaper version that: Dometic CC 40 - Electric Cooler
Much lighter! Only Refrige - No freezing options. Maybe less efficient and not as durable, but way cheaper.
I have the Massimo 42q cooler/freezer. Much cheaper than the Dometic and does a fantastic job. I’ve had it about 6 months now and taken it on 5 trips. No issues whatsoever. Plenty of room for my needs. Quiet operation. Sturdy. You can find it online for under $250. Also available in a bigger and smaller size. The selling point for me was the fact the Massimo has wheels. These things are usually heavy and I’m in and out of hotels a lot. The Massimo makes transport much easier.