If you are into tinkering with your pour over its hard to look over the options a Switch (and similar) provides as it can do both immersion and percolation and switch between both multiple times during the same brew, offering insane flexibility.
It can also reduce the skill/effort level for simpler brews because it can provide control over flow rate through the bed so you don't need to be super skilled with your kettle. I think one of the most powerful things I have seen suggested for it, is to lock it out, add your bloom water then add in the grounds. This massively reduces the churn that a poor kettle or clumsy barista has during that crucial phase.
Obviously more options can lead to more complexity, some of the recipes I have seen are frankly ridiculous for the average brewer to follow every day. This is where an attractive brewer like the Suiren comes in, if it look great and you want to use it because its attractive, then that's the better brewer for you rather than struggling with some over the top recipe that wasn't optimized for the beans you actually using.
I prefer using my Yasukiyo or my Tsubame over my Switch or Flo or Orea for this reason, despite them not being the best dripper that I own.
One of the strategies for long term weight loss is to swap from an interesting and tasty diet (which are often high calorie density) to one as bland and uninteresting to you as possible diet (often low calorie density). Idea being you will eat less if you are only eating to survive rather eating to enjoy, you will leave more on the plate.
Personally I say fuck that, as life is hard enough as it is.