Good build quality but unreliable. Bought a Surface, used it rarely, tried to pass it on to my eldest but it refused to start within 12 months.
Meanwhile, all my Thinkpads and MacBooks still work today.
https://support.microsoft.com/en-us/topic/how-much-does-out-...
In contrast poor build quality would be a thick piece of cheap plastic that creeks and rattles to touch.
[1] https://dictionary.cambridge.org/us/dictionary/english/build...