What is Reddit's opinion of Watch Case Cover Knife Back Cover Opener For Repalce Battery Watch Repair Tools?

From 3.5 billion Reddit comments

I prefer this style. It slips less, ie. you have more control, and the edge is narrower so it gets into the crack easier.

need to open a bunch of snap on case backs and don't want to pay a jeweler to do it. Will a $5 case opener do the job? I know that they're poor quality and there's better quality tools, but will a cheap one do the trick?

I was looking at something like this or this

I need to open a bunch of snap on case backs and don't want to pay a jeweler to do it. Will a $5 case opener do the job? I know that they're poor quality and there's better quality tools, but will a cheap one do the trick?

I was looking at something like this or this