Think Basil's was /is a justified name, with at least 7 or 8, sometimes more failures a day ! Even now it is still 3 or 4 on a daily basis, but they are getting better a each day goes by, the 745's on the other hand have been almost top notch since day 1.
Let's not lose focus on the main gripe recorded on this thread - which wasn't the performance of the 755s themselves, because new fleets always take time to settle down. The main concern recorded again and again was about how GA were (mis)managing their introduction.
1. Unrealistic expectations about the speed at which the new trains could be introduced into service - especially from a manufacturer new to UK's railways.
2. They failed to anticipate teething troubles, and to retain some of the 'old' trains, or to have arrangements for standby / short-term hire of coaches. This resulted in an appalling service on rural routes for many weeks, seriously affecting people's ability to get to work / school / or just move around generally.
3. Releasing 'old' stock; before the new trains (and trained drivers) were available to replace them.
4. Denial that there were issues with the new trains, and obfustication to the media - sometimes stretching credibility to breaking point.
Whilst it's great that the 755s are now working fairly well (apart from the occasional hiccup), the above are serious concerns, and GA management should be held to account, not least to try to minimise recurrence as the other fleets are replaced. I reckon they got off pretty lightly with the 755s - but if the same happens with the 720s, the reaction is likely to be on a different scale.