I recently installed a new Chamberlain for a friend, complete with the myQ Internet IoT option. The automation and connectivity with garage door openers is huge.
TBH I'm old school and liked the old Liftmaster/Craftsman opener much better - it had a beefy AC motor and screw adjustments for the limit switches. The new Chamberlain is cheap, it has a wimpy tiny 12V DC brushed motor and is slow as molasses opening/closing. It uses software to program the limit switch points which is complicated. Overall, I wouldn't expect it to last like the old one did, before its gears stripped after 15+ years. I've repaired a couple old school openers, their main disadvantage is old low security RF remotes.
I dislike the myQ phone app and door opener needing your WiFi password. Authentication goes back to their central server, which I think is creepy and unnecessary and less secure. I look forward to their server getting hacked and telling every garage door in America to open lol.
I don't think the door opener will remotely work if their server is down or you don't have WiFi. So keep an RF remote stashed somewhere.
The pluses are you can use a phone as a remote (no need to buy extra remotes), the system alerts you when the door is open/closed or motion detected (wife comes home for affair), and you can remotely open/close the door from anywhere such as when a package delivery comes in, you open the door for drop off and then close the door, to stop package thieves. This is if you have a doorbell camera.
There is also a home alarm tie-in, that disarms your home alarm when you are home and open the door, or auto arms it when you leave.
The hardest part mechanically of the installation is the rail location/length and door bracket and mounting the opener. You have to get the geometry right. We got stuck with a larger door and belt kit, the instructions are terrible for that. It's a bit of planning to measure your door and ceiling etc. but entirely a DIY project.
There are many youtube videos on how to install it. Wiring the light sensors and button panel was easy, it's just a two-wire run.