The enhancements would have been
* A bit more space with 80m trains rather than 69m trains
* Refreshed interiors, although Turbos have recently had this upgrade
* A train that could use the third rail or overheads where installed
* A more frequent service because the fleet size was larger than the Turbos (although those plans for 3tph on the North Downs and an extra unit on the Basingstoke route were pulled)
On the other hand there would also have been:
* Slower journeys because the performance wasn't as good as a Turbo
* Less reliable journeys as the trains were prone to failures
* Lower and less comfortable seats - many people do not like the proportions of 'Ashbourne' seats
* Not so good passenger seat layout, as the Turbo saloons are better than Mark 3 derived units
* Apparently a poorer work environment for the staff than offered by Turbos.
On balance it seems reasonable to say that LTV passengers and the staff have dodged a bullet with these trains not entering service.
I'm just looking forward to a NDL timetable change, now this is dead
They could bill it as improvements to journey times.
The 165s released by the 769s were going to displace 150s but not cause them to leave GWR, instead there would have been service enhancements in the West. 'Clarence Yard' has confirmed that a number of times.
Now expressing opinion, it isn't obvious to me that the stopper in the proposed 3tph timetable would have been well used, particularly east of Guildford.
Getting 2tph through to Gatwick is a desirable outcome if it can be done spreading the stops out.
Two would be great as currently if you miss the x29 from Gatwick Airport, the only way you will reach Reading is by catching the x32 to Redhill, followed by the stopping service to Reading. Following that one at Gatwick Airport it's another 57 minutes until the next x29. You could break your journey at Horley or even Redhill to kill time though.
This is Monday to Saturday most hours.
I would like to have caught a 769 but that's life. I won't mind the speed improvements when the timetable changes to accommodate the turbo service actual times and I'm sure people travelling on the stopper will appreciate not having to hang about at Guildford station for no good reason other than the timetable says they must.
I appreciate the reasons why this happened related to 3tph.