I'm fairly happy for quite some years with the Lenovo Thinkpad Yoga series. Light, reasonable powerful, first series now well into their 3rd year (imho already reached 4th) without any issues, despite being able to convert into a table no hardware faults. Experience from only about 10 units, but heavy duty. Their updated second and third series models seems also to be getting good reviews. In short, not cheap but you get a decent value for money.