Hi, how easy they are to live with depends on certain things. Being handy with the spanners is, I would say, essential. It also depends on what you intend to use it for.
Having said that, they are wonderful cars and the one that I recently sold was in the family for 30 years and was used across many countries in Europe. It proved to be a superb touring car with enough space for camping gear! Lock it up and walk away, not like an open car. If it starts chucking it down, turn on the wiper and on you go.
With Messers Woolmer and Briggs out there, the spares/advice/help should be no problem, and the club holds a wealth of knowledge.
They are sometimes difficult to work on. The rear 'axle' area is very confined and they are a coach-build car so measurable, but not perceivable difference can be found from car to car.
Glenn.