'Little end' (piston) bearing broken when the vehicle was acquired.
Distributor was faulty.
Lower arms needed replacement.
The steering is very heavy at low speeds.
But the engine is very easy to service, quite easy to remove and replace, and reliable enough so far.
Being an estate, it is easy to load and very useful, with a surprising amount of capacity.
It is comfortable and I feel safe driving it.
Looking at the rust on most surviving Sierras, I would say "it suits the amateur welder" rather than "It suits the amateur mechanic."
There is not a lot of rust on mine because I've undersealed it. I haven't got into welding yet (a can of Hammerite and some filler will do for now) but shouldn't a mechanic have a welder as part of his toolkit too?
All cars rust some quicker than others, just look at early Sierra's, these were bad for rust, late Sierra's are sooo much better and if you look after it then it'll last for ages!