I flew Turkish Air one-way from Istanbul to Heathrow in the 80's - the first and only time I have flown on an L-1011. My flight was uneventful - it was so empty alot of people had a row to themselves. My flight could have used some excitement.
They're way better now. Much better than British Airways for instance. You get real food served by real women as apposed to the horrible garbage served by the old hags BA seems to like employing these days.