2010-2015 Astra 1.6CDTI ecoflex

[Lincsls1]

Hi guys.
Looking to buy a 2015 Astra 1.6 CDTI ecoflex. The 108bhp variant, not the 136bhp.
Just reaching out to see if anyone has much experience with these cars, more specifically the reliability of the engine.
Also wondering if they are belt or chain driven, if belt what are change intervals on them?

[Lincsls1]

So I've found out they are chain driven and can have issues with tensioners.
Can anyone that owns/has owned one give experience of their reliability?
Have you had one and its been great for years? Or the opposite?