The key takeaway indeed matches yours: it's not a Voron despite being heavily inspired by it, there are some annoyances but at this price point it's forgivable and most of them seem to have workarounds (someone in the comments suggested letting the machine fully soak heat before performing Z-offset calibration), the open-source nature might bring a lot of third-party upgrades in the future.
Also, the reviewer's unit has some abnormal wear on the belts. Does it match your experience?
All in all, it seems to be a decent budget CoreXY printer with a very large volume at 1/3 the price of an LDO Voron kit + PIF parts, with a much quicker assembly but some potential pitfalls.
If this eventually becomes the Ender 3 of CoreXY printers that can be frankensteined into a a much higher quality printer over time, I'm all for it.