My daughter got married in Trapani recently and, based on the forum comments. we booked with Abita.
The apartments are (carefully and sensitively) managed and located in the heart of the old city. The staff are friendly and helpful. Breakfast is comprehensive including waist-blowing fresh local pastries, freshly washed fruit and cappuccino/American to die for.
We had some friends elsewhere in the building and all agreed that our apartment on the ground floor (go with D1, D2, or D3) was superb. We had other friends with us staying literally 200 metres away in a more expensive apartment and their experience was quote, 'dreadful'.
No hesitation about returning in the near future. Thanks to all at Abita for a superb and memorable visit.