Towards the end of my 16 years with Wastospace I flew a fair few hours in the company ATP
(G-CORP)) as SLF between Farnborough and Warton circa 2000 -2001 (Up monday morning and back on thur night) and I didn't dislike flying in it too much (I always sat at the back
well away from the props) - I certainly preferred it to
the alternative - which was a hired in ATR (except that Titan did employ some lovely young trolley dollies 
),if we were lucky we got the company 146.
As others have posted - they were not built for maintenance,quite usual for british aircraft designs of course - the british designers never seemed to even think of making aircraft easy to work on.