I switched to RAM myself after owning 4 Chevys and a GMC. I bought a 2019 Limited 4x4 with pretty much every option but RAM boxes. I've put almost 15k miles on it and it has only been back to the dealer for the free oil changes and tire rotations. I have the 12" screen and it has worked well since day one. The interface is fast, responsive, and easy to use. The eTorque option makes the start/stop system pretty much unnoticeable when it restarts the truck. No, i don't get the advertised MPG shown on the monroney sticker, but with 3.92 gears, I didn't expect it
The biggest thing for me is the transmission. Having gone from the 8-speed in my Denali to the RAM's is a huge upgrade. The RAM shifts more smoothly and is shudder and clunk free. I had my GMC in to the dealer 5 times in 3.5 years for the transmission and never had the problem resolved.
I do miss the 6.2's power, the Hemi is smooth and has plenty of power, but it's not on the same level. No truck is perfect, not even Toyota (ask my neighbor). I picked what worked for me and have been happy to this point. I'm hopeful that the new 10 speed trans works out over the next few years so that I can take a look at a GM truck again (as long as they update the interior).