What do people think of mini PCs?

Seem to be quite good deals on them. Brands I have never heard of (Beelink ??)

Even the Mac mini m4 looks decent at sale price (I know f all about macs and don't know my way around them, but I'm sure I can learn:))

Was looking at something called a Beelink ser8. I'm so out of my depth on the technicals. I also noticed everything seems to come with some AI chip bullshit nowadays. Is that a thing now??