I purchased the Nintendo - Switch™ Dock Set so that I could easily transport and play the Nintendo Switch on a second TV in my house — without unplugging the entire setup from one TV and plugging it into another. This is especially critical in my house due to the way that my entertainment centers are set up: once a component goes in there, it gets the full "clean wire" treatment, so removing, replacing, or repairing something that has made its way into my home theater is a bit of an undertaking. The Dock Set offered exactly what I needed. We can now very easily play the Switch on two TVs, which is great because that means I (dad) can play the Switch in my bedroom!
I believe this is the exact same model that comes packed with the Nintendo Switch system, so there is no learning curve or new things to learn with the Nintendo - Switch™ Dock Set. If you were able to hook up and use the Switch when you first pulled it out of the box, then you'll love the Dock Set.
I would highly recommend the Nintendo - Switch™ Dock Set for those who want to play their Switch on multiple TVs.