Are there any alternatives?

Yes, but none as well-built as the Tiki. The most direct competitor is the Corsair One i300. Maingear offers its Turbo and Origin PC offers the Chronos as small form factor options, though neither of them is nearly as small as the Tiki.

　　

How long will it last?

With premium hardware inside, the Tiki will last several years. Falcon Northwest offers a standard three-year warranty, as well, and assuming you can fit the components inside, you can upgrade the Tiki down the line if you want.

　　

Should you buy it?

Yes. There isn’t another small form factor PC that walks the tight rope like the Tiki does, offering flagship power, a super small footprint, and thermal performance that rivals desktops two or three times its size.